I've used OP Tech's displays in several airplanes other than RVs. They are certainly very capable. There are a couple of issues I encountered that led me away from them.
1. The stock AHRS provided what I felt was a very slow screen update rate --so slow (~3 frames/sec) that I would have hesitated to fly IMC with it. The $12,000, upgraded AHRS was fine in this regard, but for that price you could have a GRT dual-screen/dual AHRS system, or an AFS system, or whatever.
2. I never particularly cared for the soft-key method of comm/transponder selection that our particular systems used. It caused a lot of heads-down time while trying to tune radios, adjust volume, change squawk codes, etc. The menu system was noticebly more complex than many of the other units I've looked into recently. Digging through multiple layers was often required, even for some of the more simple operations. (You could always install separate stand-alone avionics units, of course, but having them fully integrated into the display was a hassle, IMHO.)
Not knocking OP's overall, just pointing out some things that I wished were better.
Seriously, if I don't have the answers to your questions I have access to all the Engineers and Designers that do.
