OK... for those of you who've expanded yer range on a KTM... Which tank do you recommend?? My main concern is that I want the ergonomics to stay the same... I want to be able to grip the tank... hence I don't want some crazy 5 gallon behemoth... I'm thinking a 3.5 gallon would be perfect! Cycle hut has a KTM tank that is in that range... anybody have it?? Can you grip the tank with it?? Or is it too wide?? Looking for some first hand expertise before I make the purchase!