It is very difficult to keep the "Geofusion effect", as well. As most any change in wiring methods can cause it to go away.
Most likely the snubbers are not doing what they need to do, but, if you keep blowing fets, your choke may not be doing it's job.
 

Nick,

It maybe that your Mazilli is not so prone from interference as Geo's push-pull. Try moving your Mazilli and yoke around to see if the 'effect' is easier to find and maintain.

I learned a lot from you guys, maybe you'll learn from my mistakes
When I saw the effect on my setup I was glad. I saved resonance frequencies, duty cycle, amperage and voltage ..
Duty cycle was 25%. If I decreases duty- cycle the effect disappear and the frequency and the signal was doubled and reverse, upside down.
If i increase duty-cycle , effect disappear to.
I started adding bulbs for load to see how much the load voltage decreases. When it were 600w load, everything stopped. Mosfets were cold but the resistor in snubber was hot and without colors. I realized that higher power means higher spikes and that destroyed my mosfets.
Now I think lossless clamp decreases spikes but might destroy the '' effect ''.
I do not know what solution is best, lossless clamp or snubbers?

Lossless clamp or snubbers?

Were is the snubbers in the picture below?
In the same setup three horizontal turns for the yoke. I believe the 3 turns are instead of snubbers.
I can't see  how is the configuration. Someone knows about this?

  apecore changed his fet drivers to be closer to the fets, (right on the fets) like Itsu had done, and lost the "effect". 
He is now using Geos last wiring diagram, to see if some different wiring methods can bring back this effect.
He now has managed some 200+ volts at the bulbs, up from 60v,  so far. But, may still be looking for that illusive effect.
  Verpies:  apecore is the guy that has his fet drivers on the fets, after Itsu's suggestion, not me.  I would not want to risk losing any "effect", at all. 

   I've resized the previous diagram, and have re-posted it here, again.

Nick,
In my last configuration see photo the fet drivers are not close to the fets,.....i use shielded kabel for the gate connection.
In one of my previous setup the gate drivers where as close as possible to the gates,........even then still gate distortion wich led to destroyed fets.

The main question is still is the effect coming from the "special" tuning or is it a cause(kacher) and effect(inverter) from the appearing gate pollution
It seems that the setups wich have solve there gate pollutions has lost the effect.

First one who creates the effect without gate distortion/ pollution has the real deal.

I hope some more of us doing bench work can do some testing on this item.

Hi guyz

Lachong,
Bi-TVS set I will do but that is not the issue here for the snubbers resistor to get hot.
it's because I use those poly caps 0.33, it's for a reason.
What I have now as for Over Voltage Protection is working properly
on both gates of the mosfets,
The mosfets which are in use  now are doing a good job, only if I see there is need of higher value, only then will be
replaced with something of higher value.
Not aiming yet for massive output. but reasonable out, till the system is ready to be self fed.
I will try what you suggested on using 2.2nf caps on snubber and higher wattage resistance.

Apecore,
Understood.
that is true to the part of Distortion on gates via HV pulses around.
which indeed is present when the system is busy.
I think the very next thing is to scope shot what is happening
and I hope it does not influence the operation while placing probs at specific areas.
One thing I will say is, it Does not matter if it's Kacher but, a HV pulse device with can generate and collapse the field
to call the Ions to the reciever ( grenade ) that is what we are searching for.
The effect is based on when Ions merge with the amps created  within the magnetic field of inductor.
which then becomes greater out from grenade, this is how I understand the working of this.
Remember how I heated up a piece of metal only when it's in effect and full swing mode?
here it is.
https://www.youtube.com/watch?v=FmyCYoV9Wb0

Nickz,
Mediator yoke 13T could also be seen as choke for push-pull but as experienced it does a mediator work also.
Synchronizes the boards.
 Effect happens after you have tuned the device searching and setting right Frequency and Duty Cycle %.
and not to forget the potentiometer on Kacher also has to be tuned to a certain degree to reach it.
Like placing a puzzle into eahother to get it to where it's maxed for results.
Manifestation of effect is there but needs to be worked on a bit more. 
but it's there for the eyes to see in recordings.
Kacher will not be hot, but will eventually get warm but still able to touch by hand.
emitter to ground is optional, Because it depends how you have tuned it. I do see it receives more gain.
If you place ground earth with emitter you have to tune the device on it having the connection
there to have maximum out.
Without emitter to ground Earth is again tuning  to get it to maximum.
Ruslan did mention he also removed his emitter from ground to Adrian G.


Conico,
that is exactly same behavior on my bench with the duty cycle.
everything you experienced now even on the snubbers resistors getting lossing color because of temp.
You are on right path there
This is also what Ruslan told me in a comment on one of my videos.
Don't know if lossless clamp is a good idea if it kills spikes but in what manor.
Because this system is based on spikes to generate.

Jeg,
from my scope shots I have something similar like that, without Kacher.

Lossless clamp or snubbers?

It is your choice.
Lossless clamps recirculate the energy back into the power supply and snubbers dissipate it as heat.
Both get rid of drain voltage spikes.  One runs cold, the other one runs hot. 
It is your choice whether you like to convert the unwanted energy to heat or not.

Were is the snubbers in the picture below?

I cannot tell from the picture but the main snubbers would be the resistors, capacitors and/or diodes connected between the drain and source.

In the same setup three horizontal turns for the yoke. I believe the 3 turns are instead of snubbers.

A winding that is perpendicular to other windings will not act in lieu of snubbers.  For that you'd need a winding that is parallel to the primary winding.

A perpendicular winding, like the one you call "horizontal" in this picture, is unconventional and is usually used only in saturable reactors, magnetic amplifiers, parametric transformers/amplifiers and NMR.

Don't know if lossless clamp is a good idea if it kills spikes but in what manor.
Because this system is based on spikes to generate.

Well, you have to suppress the drain voltage spikes somehow or they will destroy the MOSFETs.
Whether you want to dissipate the spike-energy as heat or recycle it back into the power supply, is up to you.