There must be a flaw, since I have never heard of it, but what about REVERSE LEBENSOL? (Of course there is Reverse Capp and Reverse Jordan already.) Bid directly (to 3 level) with the weaker competitive hands, and start with 2N with game invitational or better values. In general, with more values, you don't mind the opps competing further, as you are better placed to punish them. There might also be another benefit from the reverse approach. I know it gets awkward when 2N is a puppet to 3C which might get passed, so the doubler, with any considerable extras, has to bid something else. But what? a cue? A new but 4card suit? If 2NT always showed invit+, a new suit, other than 3C, could be 100% forcing, (after 2N) and may help reach the best strain and level sensibly? Hmmn.