I vote F8 also. I love mine. I get over 1000 shots on a 68/45. It is really efficient and easy to maintain. But in the long run it will depend on your preference. Do you like spoolies or poppets better? If you get a chance try shooting them both and see whats more comfortable to you and which you prefer to shoot. Either way DP makes great markers.
First we get jobs. Then we get the Khakis. THEN we get the girls.