re=read my post and ponder exactly what I said.. and not anything else. :) I'm sure it will come to you.
a hint for the up/spin comment. you are correct. you disconnect a pto to keep it from spinning. IE.. no need to hav ea mower aimed at the sky and spinning like all get out.
a hint for the pin comment. notice i do not indicate this will hav eany effect on your geometry issue.