I've been gone all day and just now checking in here. I "assume" it will spin all the way around absent hitting the tires. My BIL was telling me that on his 4020 that there are extenders (similar to I assume was mentioned above in this thread) on his lower arms that allow for some extra movement.
My deal is that when I'm blading that, it's fairly common to grade some, then back-drag, then have to grade some more etc, so it'd be a royal pain to unhook the 3-point.
I like the quick detach idea though!
If I can figure out how to post a picture I will do that maybe tomorrow.
Really appreciate al the comments so far!
Thanks a bunch.