Honestly, I like the RMD far more.
I stripped my SAR 5, and had a helluva time getting rid of all the black underneath the paint. Ended up talking about my problems on here, and someone offered to blast it away for me. I remember who, and appreciate it; they did a GREAT job, but I don't want to say their name since they offered the service to me. They can chime in if they want.
It is INFI. The hole doesn't bother me at all. The reason I prefer the RMD is the handle is much better, for me. The SAR 5 handle is too thick, and too rounded. It is one of those things where you have to THINK about where the sharpened edge is, instead of like most knives, where the handle/scales drive you to have the edge oriented correctly. I have often thought of sanding down the scales, smoothing them, and getting them to the point they orient the edge properly. I just haven't taken the time yet.
All that being said, IMO, the shape of the blade itself, and the fact there isn't really a finger guard or choil, makes the blade one of the handiest I've seen (and used... the little bit that I have so far).
The other thing is it isn't exactly the easiest to find a sheath for. I'm sure there are a couple of kydex benders that could make a good sheath for it. The SpecOps sheath won't work. The way the handle is shaped, the strap won't hold it in the sheath. IMO, the best option for sheath is a leather sheath that is long enough that it goes up over at least part of the handle. I now have mine in the Busse leather sheath that was offered with the FHFG RMD. Works great!