The Float you have should use the amounts as HB already said. You can mess with the oil amount in the damper side, you can safely run about 145 cc's - 160 cc's=change in progressiveness. The Float ramps up plenty by air chamber size and design, therefore running 160 cc's in that fork would be for someone who is either big or riding quite aggressive. If you drop below 145 cc's you will possibly get some cavitaion, air and oil mixing because the oil amount is low. But......most people rarely set the oil below 150 cc's anyways. You will only effect the very end of the stroke, it will ramp up a bit quicker with more oil. 145 cc's is a good idea for light and or non aggressive riders to try. Oil amount WONT effect compression damping. Compression damping changes would be done by your C=compression clicker on an RLC, and or heavier weight oil, or shim changes on the compression piston. Dont mess with shims unless you know exactly what your doing.
At this point, consider the PUSH mod upgrade if your not happy with the compression.
The spring side oil amount differences you mention are due to fork designs and travel in Fox forx.
For your Float, put in 30 cc's. The Vanilla amount is due to an open end cap where oil can go up into the entire stancion leg area which the spring is in. On the Float the oil amount is at 30 cc's max because the area for that oil to be pushed around in is much smaller due to the air chamber above the splash bath area. I have run as much as 100 cc's in my old Vanilla forx. Cant be done on the air forx.
If I were you, I would set the damper side at 150-155 cc's as HB said, and then change the fluid amount ontop of the air piston for progressiveness, easy access, easy to put fluid in and out and not mess with the damper. start with 3-5 cc's, go from there.
