In is faster, out handles better
 

I have a 1987 12 meter. It was a TRS boat with the props spinning out. I rerigged with SSM #5 on boxes. I have tested with both rotations. In has a slip loss of 8% out has a slip loss of 12%. In is faster at all speeds. Out is slower at all speeds but the difference is big on the top end. Out is much easier at the docks but you can get used to the in rotation, it just takes time and practice, the boat always wants to yaw because of throwing water on the transon. Try both rotations if possible to see what you like. It is real easy if you have bravos, just switch props and run it in reverse. If TRS you have to change drives. Make sure you change the tow, 1/8" against the push of the props. Good luck

2000 Classic turning in with 4 blade Bravos and 500efi's. At first I couldn't dock worth a darn, but I did get used to them and with a little thought and some throttle docking is no more difficult than turning out on my last boat (not a Fountain). It just takes some getting used to.
David

I never really payed attention, but '35 fountain' looked at the props on my boat this weekend and said that the props turn out and he thought that was strange.

My 05 35 Fountain w/525's is factory stock. Why did Fountain build this boat with the props turning out? Would changing them to turn in make any difference in cruising and top end?

my '01 lightning has them turning out as well. I just thought the previous owner had them switched but maybe it was like that from fountain?