WGP Frames (hate em)
Stock Lightning Frame
Eclipse Swing (wasn't all that impressed)
System X frames
Psycoballistics Lightning Deluxe
ANS 90* Frame
ANS Beaver Tail
Evil Pipe Barrel
FBM Back Block
CCM Pump Arm
Macro and a Shocktech drop
68/4500 PMI tank
Safety dosn't work at all, but I really don't care about that.
I have been using this frame for a little while now, and I have to say that it is extremely comfortable to balance the gun, and for giving you a more consistant speed in a shot string. I replaced the stock spring with the spring from a mad man kit for a slider frame, and it shoots incredable! Very good position to apply force to the trigger, so less short stroking, at least for me! Its plenty adjustable for me, I have mine suction timed, I have to afterall, I am entering a vapor series tourney pretty soon, and no electro hoppers!
Overall, I think this is a great product, it is very smooth, and with the lighter spring from my madmann kit, it shoots incredable! Best frame I have used on a mech cocker!