I have 3-TRS-1's and 3- LRS-1's and love every none of them. Very clear and bright glass and I have never re-sighted in one, they hold zero and the mildot / bar reticle is very usefull if you are a holdover kind of guy rather than a knob cranker and recorder for where you are. My scope dope for hunting not target shooting is hold over from the mildot / bar reticle. I do not want to remember how many trophy shots I could not take for taking my eyes off the target for a second to start cranking, screw that. I never take my eyes off my game now. Both the TRS-1 and the LRS-1 have very easy to use knob locks. If you get the LRS-1 you have settings at 12.5x and 25x the 12.5x is just twice as much. There is a definite detent at 12.5x that you can feel as you turn so you do not have to look.The LRS-1's are mounted on my match 308 and a 338 RUM and a 300RUM all have been perfect and they are a fraction of the price of the other quality scopes. They will also hold up to a muzzle brake
and most other scopes it will shake them apart. A shooting buddy has had one on his 50-BMG since they came out and no problems.