So I picked up an X5 in anticipation of moving to it. I tried out my standard ammo (Freedom 147gr RN) on it. With the recoil spring it comes with I got failure to feed and eject. I went to a 13lb one and got the failure to go into battery. I went down to an 11lb one and am still getting failures to go into battery unless I grip the shit out of it and maintain it at all times. A lessening in any way and it does not go into battery after the first round (1/2" short or so).
Ammo: Freedom 147gr RN New. This comes in at 130-132PF on a Glock 34.3 and a 128-130PF on a Shadow 2 (125.2 in the cold). I brought these pistols with me along with a Q5 and all had no issues with the ammo (G34 has an 11lb spring, S2 has lower one from CZC as well, Q5 is stock).
Pistol mods: Only mods are tungsten guide rob and the spring changes. The X5 is stock otherwise.
Any help/advice here would be appreciated minus the "just always grip the shit out of it". While I agree having it not go into battery if I slack at all means it is not a good comp gun for me.