Marlingford is spot on. The current plans can only be 100% to run. Another schooling session will tell them zero unless he falls. His problem is not jumping; it’s either concentration or confidence when in a race, and there is bugger all a horde of Yogi Breisners can do about that.
All the preamble is window dressing. For two men who claim to love the horse so much but are willing to send him out on a literal wing and a prayer simply to have the chance of saying ‘I told you so!’ is beyond my comprehension.