I have a 360 with the Hartzell cs. I find it handles best when there's a passenger in the back to bring the cg into a more neutral range, so if you usually fly alone the lighter up front the better. If you go look at one, take a -4 builder with you. He'll know where to look for gremlins.
The only thing I would remove from Randy Kings' list is don't ask why the aircraft is being sold. If it's for a personal reason the owner has to either divulge information that isn't your business or come up with a lie on the spot. Maybe I just like my privacy...