Just fired up my g-62 from Ralph Cunningham from R/c Ign. All i can say is i was very impressed on how smooth this motor is with the c/h throttle coupled advance and ralphs work. It was very smooth right out of the box and mounted the Utlimate. It was 19 degrees outside here in Iowa and i didnt touch the needles. I didnt get a chance to tach it yet but running a NX 23 /10 prop. Very good top end for a new motor and very good midrange with no burble at all. For the deal i got on this motr from Ralph i cant complain. I run numerous Brisons and one Taurus and i know this motor isnt as lite as those motors but i think it will perform great on this bird. Started on the 4th fip . Happy camper i am.