The 150 twist flys well, for that first flight keep the rates down and use lots of expo so will not over control the aircraft, I use 50% or less with 30 % on the elevator and at least -40% on my Futaba 9c. Make sure that you are at the Cof G, not behind it, I would balance ahead of the Cof G and then move it back as you get used to it, you will be adding to the rates as you progress as well. What motor are you using?