Not sure why you have different results on your carry vs full size grip modules. I just built a TXG (Full size) grip module with a x carry slide and a dual port Harrington Arms comp. Stove pipes galore today the first time I took it out. These are the 3 solutions I've found online:
1) run heavier ammo like 124 gr, or even 124gr NATO (heavier powder load than standard but not quite to level of +P)
2) remove factory recoil spring and replace with DPM adjustable spring using the lightest (shortest) spring
Here: Sig Sauer P320 XCompact 3.6″ Barrel – DPM Systems Technologies Ltd
3) run several hundred rounds to break it in
Is the full sized grip module more broken in? The dust cover length should not affect results. My full sized TXG is new and is having the same problems you are having with your carry module. I've read that the break in really affects results. Dual port comps are also finicky because they vent so much gas that not much energy is available to kick back the slide and eject the shell leading to stovepipes. The lighter recoil spring requires less energy to overcome so the slide cycles properly. The problem is that only DPM makes compact and carry sized adjustable recoil springs (costs an extra $100).
Hope that helps.
1) run heavier ammo like 124 gr, or even 124gr NATO (heavier powder load than standard but not quite to level of +P)
2) remove factory recoil spring and replace with DPM adjustable spring using the lightest (shortest) spring
Here: Sig Sauer P320 XCompact 3.6″ Barrel – DPM Systems Technologies Ltd
3) run several hundred rounds to break it in
Is the full sized grip module more broken in? The dust cover length should not affect results. My full sized TXG is new and is having the same problems you are having with your carry module. I've read that the break in really affects results. Dual port comps are also finicky because they vent so much gas that not much energy is available to kick back the slide and eject the shell leading to stovepipes. The lighter recoil spring requires less energy to overcome so the slide cycles properly. The problem is that only DPM makes compact and carry sized adjustable recoil springs (costs an extra $100).
Hope that helps.
