I am baffled with this problem. My officemate just bought the same blower and he was totally impressed with the adjustablitiy of the three-point hitch setup. He showed me pictures of it, and there is a pin and four different holes. He pulled the pin, slid the hitch to the proper shaft overlap for use with his quick-hitch, and inserted the pin again. I must be missing something.
Aside from my misunderstanding, as a word of advice to ya Scaper. Ask clearly without ripping anybody a new one, IF you are interested in getting help from the wonderful resource here on TBN. As I read your posts, they were more full of resent and hostility than any facts I could use to help you diagnose the problem.