It seems to me that it may not have enough power as the engine is a 26cc gas . But I have noticed once I relax the elevator stick a little it even's out .
But then as I am flying along and pull on the elevator it is very sensitive I am using the recommended throw on all surface's and also minus 12% EXP on ail;elev;rud; As this is my first gasser I am not sure what is going on. The power band is very different from a nitro engine for sure .
hyflyer9