I have a Carrier Comp follower in my 1301T now, too.
It arrived last week. I installed it and did a cursory load/unload test.
Took it to the local IDPA club match the next day, and used the 1301T in the shotgun side match.
I put about 25 rds through the gun, including some hurried reloads (I really need to practice efficiently reloading that gun).
All was well. I like the new follower.
An aside:
I missed several (like 4) slug shots at an 8” plate at about 75 yds. When I got home, I noticed that my RDS (Trijicon MRO) was loose.
It would wiggle enough to feel, but not enough to see the movement. I got out the Allen wrench and torqued it down... still wiggled.
I then figured out that the aluminum Picatinny rail (I replaced the original plastic one) was loose. The screws had backed out a bit.
And while I was wiggling things, I found that the stock rear sight was even looser. They both appear to use the same screws. Now, I obviously removed and replaced the ones in the Pic rail (and my habit would be to threadlock them, but I honestly can’t remember). But the rear sight has never been removed.
I probably don’t have much more than 200 rds through this gun - just enough to function check it and sight it in as I added things like the aftermarket front sight and MRO.
So my suggestion would be to check the snugness of the rail and rear sight at every cleaning, so you don’t have things working loose like I did.
Any suggestions on which threadlocker is best suited to stuff that I pretty much NEVER want to come off?