I agree. With apologies to Damon Runyon: "The race is not always to the swift, the battle to the strong, nor the advantage to the DI, but that's the way to bet it." Here is my original comment. I gather that dedicated DIs practice to the point of not having to think about their toss mechanics, developing muscle memory IOW. By "choking" I was referring to overriding this muscle memory by overthinking the toss instead of "just doing it". I have also assumed that during a hand DIs use some kind of winning progression with "house money". As more money is put at risk I would imagine the fear of losing would increase, especially if the ratio of profit to risk is increasing (absolute profit notwithstanding). Hence my suggestion to increase this ratio (by taking some money off the table) at predetermined points in one's progression thereby overriding Kelly instead of muscle memory.