Hello Stalker, read up on how to polish the feed ramp in your 40 and also use round nosed bullets until it's broken in good. And i would think the ears were too close. JMO> Someone will tell ya that knows a heck more than me soon.
Polishing the feed ramp is an option! but I think you should just tap your magazine in the palm of your hand to seat the ammo and keep shooting for 2-3 hundred more rounds. It will get smother as you go! Your gonna love!! The .40 is my favorite!!