Hey guys, so i have put around 12 to 13 hundred rounds through my sd40ve with very very minimal issues. I have had maybe 5 or 6 ftf and fte out of the 1200 to 1300 rounds i have put through it. The one thing i do consistantly have an issue with is the slide locking to the rear at the expense of my last round in the magazine. Now i bought this firearm brand spamking new and have taken great care of it but i have since cerakoted the slide a nice patriot brown and thrown a tlr-4 on it. Now the light/lazer wont void my warrenty but im not sure if s&w will fix this issue for me so i figured id ask you all fine gun owners. If i were to get a lower weighted recoil spring like a #17 would that help? I think they say theres is an 18 and i figured its just too much for the factory rounds im putting through it. Any recommendations?