I'm starting to get frustrated with this problem. I start the trigger stroke on my P30 LEM (V1) and reach "the wall" where it stacks - As I push through the wall, I'm finding that as the trigger breaks, the front sight dips low and right. I first noticed this a couple of months ago in dry fire and it was ugly during my last live fire session (~3.5 weeks ago). Thinking I was anticipating or heeling, I focused on ball and dummy drills - not a flinch problem. On slow, smooth, pushes, when the gun breaks, I'm twitching it right, even sitting on the bench. I tried various combinations of side panels and backstraps, I currently have all Smalls installed, because that's the grip that "feels" best.
Earlier today, I think I finally found the problem - as I reach the break, the stacking weight of the break is causing me to move more trigger finger onto the trigger, torquing the gun to the right and causing the dip. To try to solve this - I got a vise-like grip on the gun and squeezed the trigger as smooth as possible and I found it balanced out a little. Problem is two fold - First - I can't grip my gun like that constantly, the carpal tunnel in my wrists prevents it. Seriously, ten dry-fires with that super tight grip and I had to pop two Aleve. Second, it feels - almost like - I can't get enough grip on the gun.
So my question for P30 and LEM shooters (both) - have you had issues with the pistol squirming during the break? Solutions?
For a reference point, I broke out the 1911 and did 20 reps on it, then 20 on the P30 as I normally grip it, then 20 on the 1911. P30 sight dips and moves, 1911 is rock solid...So it's not (entirely) a trigger pushing software problem - it's a combo software/hardware issue.