HaLeiVi: I think he meant the Rashi about not starting from HaChodesh HaZeh Lachem.
Ben Levi: You should just stick with the Ta’anah that the Rambam is a relatively minority opinion and that later authorities have mostly rejected his Derech. Saying that he did retract and/or would retract if he knew Kaballah is very Dachuk at best and borders on insulting to the Rambam’s position. I don’t know who (if anyone) says that the Moreh is meant to be learned Al Pi Sod but, to be frank, [I’m not going to finish this sentence, but insert harsh phrase here].