After a range trip, field stripped and cleaned the pistol. Upon function check, the slide would hang up to the rear when ridden slowly. When trigger is pressed to rear, no problem. Zero issues prior to this, possible I never noticed thumbing it before hand as well. This is a new to me pistol. Yes, I know I should have changed the recoil spring before sending hundreds of rounds down the tube.. Could that be the issue? Problem with disconnect? There is also some finish wear on the full length guide down on one side length wise. Any help would be greatly appreciated.