have to totally disagree with you-learned this over thirty years ago at Marine Corps Base Quantico-weapons training battalion, pistol shop, rifle team eguipment-'tight' feed lips will hold the round too long and the slides breech face will drive the round straight into the feed ramp and the ogive of hardball will turn it down, and with hollowpoints the ogive of the round and the structure of the nose will determine what happens after it contacts the feed ramp. sometimes the slide just slams the round into the feed ramp and there it sits still held by a minute portion of the feed lips. as i posted and you reiterated-feed lips that are too loose will result in a stove pipe-the round stands straight up, held by the feed lips and jammed between the chamber mouth and the breech face. magazines timed to the pistol work all the time every time. as for the nose dive occuring before the round leaves the feed lips-only if it is still in the mag, nose down. then you look at the spring first.