Yes, the Mokis do burn cheap fuel. Only 10 bucks a gallon for 0%instead of 15 for 10% nitro. My 1.8 was putting me in the poor house; couldn't imagine what the 2.1 would do. I'll stick with burning fuel that only costs 2 bucks a gallon and doesn't leave slime all over the belly. As for the aggressive climb, well you can watch the DP330L vids on 3dbatix.com. That's on a lighter DP Extra, and my Midwest will still outclimb that.