it's true, as I said yesterday, i'd do it . . . but it's up to you. Although I can see Wendy's point that if he's still in the 50's, maybe not.
There's no way for us to know for sure if he won't go right under 50, but if you're up for monitoring and testing, i'd go for it for the sake of knowing for certain that he's ready for a trial.
But I don't mean to pressure you - the choice is yours.