1911 slide release question

I noticed today at the range that if i put a new mag in briskly it will send the slide home

its a Taurus PT1911B-1 with probably 1500-2000 rounds through it at this point

am I being too rough with mag changes or is something worn out?

If I dont slam the mag in it stays put but if i give it any oomph it releases the slide

thanks blay

and THR is so cluttered searching sometimes is more frustrating than just blatently asking a repeated question

hmmm problem not solved...

ive checked the slide stop and it is making proper contact with the slide
the plunger also seems to have more than enough retention
the rounds are not interfering in any way that i can tell
and the magazine "activator" lip is not missshaped broken or otherwise bad

now the interesting thing is i loaded one round in varying my force from slow and easy to fast and hard and it didnt do a thing out of normal 1911 operation
I then loaded a full mag and tried again varying force from light to full on slam

it only happens with a full mag being slammed in but from what I can tell there is no interference from the round itself or the mag follower or body

is it possible that the way I load the mag has enough enertia to release the slide?

I have double and triple checked everything from the previous thread and it all seams fine

what am I missing?

RC Model thats your cue lol

P.S. the unanswered question from the other thread was something about a dimple in the slide stop where the plunger contacts it..
my 1911 does not have this dimple either...
is this enough to detract from the retention and allow this to happen?

thanks RC ill see how it goes and let you know

Stork I always slingshot its habit from training to manipulate the slide by hand and not rely on a slide "release" for all motions needed

I have also checked for wear and have not found any and the angles match up as close as a taurus would allow (still within operable specs)