http://www.wgt.com/proshop/product_compare.aspx?compare=true&c=Drivers&i=4c4c5639-0235-40c6-881c-f986cbe0c69c,47b90efd-1575-4e80-97bd-4a6124d7c9e3
I had the level 80 r9, and the meter isn't as fast as it shows, it will out drive the r11 into a headwind because of the trajectory. Take the Rocket ballz or r9 over the g20.