Follow-ups to the 2D Odwyrtka bid are essentially natural: rebid a 5 card major, bid 2S after 1C 1H 2D with 4-4 in the majors, show a biddable 5+ card minor or bid 2NT. Jumps show excellent suits with or without a short suit (a jumps in new suit is a splinter in support of yourself). The 2NT bid over 1C 1H/S now shows 4 card support. Responder bid 4H/S with 7-8 balanced. With 9-11 bid a biddable 5 card minor, 3H/S, or splinter. With 12+ bid 3NT. The splinter could be out of the 9-11 range if you judge it is the best way to investigate slam. We use this but I still think the 3C bid showing 5+/4+ in the minors could be useful. We can handle the big club suit hand by starting with 2C. We can also handle the big diamond suit hands starting with 2D, so it seems 3C and 3D (over 1C 1M) should be used to describe some difficult hands with both minors, since on many auctions staring with 1C 1M 2C/D it may not be clear if 3 of the other minor is a real suit.
