I have two TRS-25s using the UTG RS10S3 mount which gives a bottom 1/3 cowitness. Really didn't expect much out of the mount except a $10 solution until I found something better. But it's solid yet comes off fast if needed. Goes back on fast and returns to zero. Never upgraded them because they work and just bought a third mount. Waiting to get another TRS-25 too.Are you running absolute our lower 1/3?
Which riser you using?
How many shots have you held zero with that setup?
I've thought about picking up this red dot as a backup.