By "high" cheek, I mean "full" cheek. He doesn't like the 'nut-cracker' action of a single jointed bit which is why he is ridden in the french link. He does lean on the bit which is why I was wondering if it may be of use to use a waterford a couple of times a week and use his usual bit for the other times. I was wondering if that would encourage him to stop leaning rather than totally switch to a waterford and then find, when he goes back to his usual bit, he takes advantage of it and leans again?
Thank you for your help!
I never tried waterford so can't really comment on it. However when I tried to go back from loose rings to eggbutt after riding in loose rings for while (just to see if the "leaning" part went away) my paint started to lean again.
Could you, may be, borrow the loose rings french link or waterford from a friend/other borders to give it a try with you horse before spending some money?