IMHO. If the tail drops bad in a turn that is too tail heavy and 4" sounds too far back. I have not had this model just speaking in general. I have a World Models Trainer and I like it. I had a 4*60 and it flew better than my trainer. Maybe cause it was bigger..

ANYWAYS>. The trainer I had was 3" back. I had it just a bit tail heavy like 3.25 but that made it fly better after I done that..

I would check it again and move it forward a bit. Jsut a little at a time. .25 max each time.. That is how I do it. With a trainer it seems the large wing would be forgiving in this area but I guess it is just as important as any other model..


LATER