I have a performance center ported core 9l. Shoots good but wanting to get it a little better. I have a canik sfx that ive changed springs in and polished . It shoots great now. Want the m&p to do the same. I tried a lighter striker and was having a few light strikes. So went back to stock. Has anyone changed recoil springs? Plunger spring? Anything i can do to improve on it? Trigger is pretty decent with the adjustable stop.it it was a little lighter it would be nice.