Could be. Ron Kile used to run a lot of peas and was telling me about some of their set ups. Basically, if you can run peas or lentils now, I cant see why you could'nt with helical concaves. Like i say, it's not that they are over agressive, you just have to realize the increase in performance and thresh action and make adjustments accordingly.
In an overly simplified statement, I tend to look at the front concave as a "conditioner" of sorts, to get the crop material in the proper "state of thresh", for lack of better description. If I can get things arranged properly and in the condition I want, then normally I have an easy time getting the final results I want. In other words, since you are looking at the helical concaves and are actually excited about learning their pros and cons, I think you are one of the few that can think outside the box. That is important IMO. You likely have a better chance than most at making the helicals work for your crops.