hey man. i run a 35mm carb with the trinity setup and i love it. i don't notice any real loss on top although i'm sure i might have lost a little. i plan on porting to really wake her up cas right now i have NO bottom due to high compression and the shearer pipes i'm runnin, but i love the hard hittin powerband. i would say don't knock it till u try it. if u can get a used setup try it and if u dont like it u can always sell it. my opinion is that the twin carbs aren't reeally necessary unless ur strictly drag. my bike runs great with the single carb. and is a little better on gas too. hope this helps. feel free to ask me ne other questions. dunedemon and some others have some nice banshees with the setup as well and they ride dunes all the time.