Hello all, I have a gen3 G29, wanting to improve performance with full power ammo, so I have purchased a Storm Lake 4.48" SS barrel for my G29. I have a few questions for those witrh real gun knowledge. I thought this was a drop in barrel, but i read somewhere that it is "semi drop in". I am not quite sure what that means. Can anyone educate me on the SL barrels? Also, I was looking at trigger mechanisms. I am pretty handy with my G29 after several hundred rounds of practice, but as I get past 30-40 rounds, the "trigger jerking" begins. Are there some slightly adjusted trigger setups that can help, or possibly some new way of gripping the weapon?