♥♥♥ Agreed, you could play it like that. Better have agreed on that possibiliity with partner; to avoid play in the 3-3 fit. When I play Acol with grandpa, it is always 4 5, and we play it as one round forcing. Supporting the second color is a proposal to play in the 43fit. Why is it that the experts, at least in SAYC, insist to play it as a game force ? And even, when, as you suggest; it could be a 3 card, why should this be now game force ? It could be simply an invite to 2NT (other possiblites are: opener rebid his color or our first colr as a proposal to end the bidding). ♥♥♥