I should have read this thread before making a sous-vide curry with dark turkey meat. I had it in the sv bath at 133F/56C for 3 hours. The taste was good, but the meat was quite chewy. "Unpleasant" is a good term. Fortunately, I had divided the curry into two bags; so I'll just throw the other one back in the sv bath at 150F/65C. The Voltaggio recipe cited suggests 2.5 hr for thighs, so maybe I'll go with 2 hr., given that mine are already cooked (and cut up).