Mbogo

I bought a G34 to play IPSC. I wanted to play with it so I got a Carver Competition mount and put a C-More on it. First off I admit I didn't lower the ejection port the 0.1 inch as reccomended. Played with it Wednesday shooting American Eagle 147 gr FMJ using the factory Glock barrel and it did fine. I had read post on this forum about the 34 and problems with compensators so I tried a ported barrel. EFK Fire Dragon 3 port. This afternoon I had a chance to shoot it again, first time with the ported barrel. I used some 124 gr American Eagle FMJ. About half the shots (just one magazine) jammed the cases under the C-More. I'm thinking the recoil spring will need adjustment (replacement with a non-captured typw). Any ideas? Will I have to lower the ejection port too? Thanks

Can anyone reccomend an optic mount for a 35 that will mount without modification to the frame? I have looked at the GAA and Glockmeister which may work. I'm just playing after being out of the game for 20 something years. I have a Leupold Gilmore dot that I used bullseye and M2 Aimpoint available to play with. Oh yeah, I also need help with which holster to use with a given set up. Thanks