There's a line that always work (even if West is 1462) provided that we can read West's length in Diamonds (let's suppose he has 6). Note : if East has the stiff ♦Ace, West cannot be 1462 (he would have led a Diamond). The principle is [234] cash Spades, [56]Ruff one club, [7]Heart to dummy, [8]Ruff club. We now have West's complete count, and West has kept 5 red cards : 1. if he's kept 2 diamonds only (he still has 3 hearts, and was 1462), we cannot strip him out of Hearts, but we can just play [9]♦King from Hand in order to set up one diamond. 2. if he's kept 3 diamonds, we can strip him out of Hearts [9-10] ruff a Heart, and [11] play Diamond toward K10x, covering East's card. Playing this way, I think we almost always score 11 tricks.