From a reloader's standpoint, sure it's feasible. But it's not really advisable to change the seating depth of factory ammo. That ammo is made to specs and should stay within specs. But, generally +/- a hundredth, MAYBE two... isn't a reason for concern. You've also got a concern of damage you could cause by simply pushing the round deeper after the crimp is set. If it's simply a matter of different types of factory ammo being different lengths... they work up the formula for the load and I can promise you... Federal, Winchester, Remington and the likes are going to put out ammo that is safe and reliable in virtually all modern firearms.
Honestly, I wouldn't be all that concerned about length. I've not had any issues in my LCP due to OAL. Of course I haven't shot a ton through it. It all boils down to this... it's a pocket pistol, not a competition pistol. If it functions fine with what you're using, don't worry about what this guy and that guy said.