Maybe the Helium was in the small print! I had a Goldberg ultimate that weighed 10# with a YS 1.20 that would torque roll at 3/4 throttle but wanted more so I got the 1.80 thinking at 10.5# the DP Ultimate would be much much fun. I think it still will be at 12#(first flight is scheduled for tomorrow) but it would have required 30% nitro with the 1.20. I too heard that the 1.80 drinks fuel but figured that (1) I won't be at full throttle very much. (2) I won't need 30% heli fuel. (3) It's going to be FUN!
Running rich (needle valve open 3.5 turns) and turning at 7K rpm during the final tank of breaking in the Saito 1.80 it used 11 oz in 6 min. At a richer setting and 5K rpm I got 9 min on 11 oz. I need to time the motor runs some more to see what kind of flight time I'll get, 8 min with reserve would be good.