
That's about the only requirement; the system should be such that one would categorize it under Strong Heart systems (if there were such a category). Other opening bids as well as the true nature of the one heart opening (whether it's the only forcing bid) can be freely chosen. And, as I might have to actually play the system once or twice, it would be nice if it weren't totally ridiculous or ridiculously hard to learn.
So, any suggestions?

(I know googling brings out at least one strong heart system already.)