[X(] My blast is set up the same as yours with a 6 cell pack and my stock tower hobbies turbo v II beats it and it's smooth and makes no noise at all 100% better than the blast!!
Look at the vid all the noise is from the crappy blast!
[link=http://www.arxreptiles.com/Other/104_0430.avi]BOATS RACING[/link]