I also picked one up about two months ago and put the Bushnell HDMR H-59 on it. I also tried to change the trigger to a Geissele DMR trigger but couldn't get it to clear the safety selector (not the actual safety in the lower, but the second trigger pin was blocked by the HDMR). I didn't want to do any extensive fitting so I installed a Geissele 3 Gun (and it fit right in without any problems).
Great trigger, I have one in my mws.
Works equally well for precision and drills.
A large step up from the ssa-e, which I also have, as well as the s3g.
My understanding is that the National Match DMR triggers are designed around precision rifle work, not fast follow-up shots and quick resets. The SSA, SSA-E and 3Gun triggers are designed for fast shooting, with the 3 gun trigger being single-stage and a much lighter pull, and the SSA being fast but suitable for duty work. I could be wrong but that is my understanding.
I have never used the National Match triggers, so I can't comment on them. My Guissele experience is limited to the SSA, SSA-E and ACR (basically just a modified SSA) triggers.



























