may not be as silly as you think since you will have at least 9 cards in ♣ and consequently the probablility of taking 8♣ tricks well exceeds 50%. This of course does assume a sane,awake, and thinking partner. You cannot be serious that you consider this to be an appropriate hand for a gambling 3NT opening (unless you are raising the term "gambling" to a new level). You should have a suit with 8 sure tricks opposite a small singleton. AKTxxxxx does not qualify. By the way, sometimes partner has a very strong hand with a void in your suit. He should be able to raise your bid to slam in your suit with confidence. For example: AKxxx AKxx AKxx ----- Knowing that you have 8 solid clubs, he can bid the grand slam. If you open 3NT with AKTxxxxx you will fail. seems like a special case of josephine to me so the auction goes 3NT 5NT 6♣=does not have all 3 top honors I think you need to be a little more lenient in how you play G3NT or it is a wasted use of brain cells. So is AKQxxxx good enough for you? You only need a 3-2 split at worst and in most cases it will take a 4-0 split to beat you. Requiring AKQJTxx seems a little too extreme to me. Having a suit which will take 7 or 8 tricks off the top ~75% of the time ought to be adequate.