i'm a TRS-25 fan but have never tried a magnifier and probably never will. the TRS-25 is dead nuts perfect out to 200 yards. i just don't see a 3x magnifier really giving all that much more. also i don't think the TRS-25 glass is all that excellent, so any magnification will just make the glass imperfections more visible.
personally if i were going with a magnifier i would opt for an aimpoint or possibly the vortex spitfire/sparc options with their 3x mag. it gets to be a lot of shit on the rifle just to have a 3x option. meh.