I I came upon this system that seemed quite good, but i couldn't find any (easily accesible) information on it. I havn't been playing long so so it may be complete rubish(please corect me if i'm wrong). The theroy goes like this. In sayc you are put in a very dificult situation with 4432and 4423 (and such), often having partner alert that a one club bid may have as few as two clubs. Now if you play a 1♥ opening as being either a 5cm or 4-4 in the majors, this problem seems eradicated. the only awquard hand is 3433 and 4333 (note diamonds are always at least four!) and most of the time, a 1 club bid will be at least four, and if not we can always re bid 1nt. Further this system seems even better when playing a weak notrump because because we dont lose a posible heart fit from opining 1 nt, and that 1 club bid can be replaced with a 1nt opening. if 15-17 the posible 3 card 3 club suit seems less dangerous too. As for partners responses if he has 4 spades he bids 1♠, 4 hearts 2♥, a flat hand 1nt. Might need some kinks worked out of it, but is it just me or does this seem suprior to ordinary 5cm?