how are most guys getting more speed out of a DD? is it clutches, or are ya doing gears. got a 05 900 DD, dont know if i should go to the 10.4 update on the secondary, or leave it and do some gear changing when and if avalible? 2 05 F7, the one with DD left me behind, i had a gearcase with reverse, the DD F7 beat a gear 02 800 efi!! i got mixed reviews about the DD, good and bad!!