I don't particularly care for the 2H supernegative, because (a) it takes a major away from the strong opener; (:) to show hearts, you must then bid 2N, which takes that away from the opener, which I think is even worse; and © the weak hand has no way of knowing if his/her meager assets are just the little bit opener needs for game or even slam. One thing that does work is for the opener to jump over a 2d waiting/negative bid, to 3h/s or 4c/d, to show a hand that must be in at least game even opposite a total bust. Such a bid is forcing. If you play that a non-jump rebid after 2d is not forcing, then the responder can just pass that and stop in 2h/s or 3c/d with a total bust.
