Look at it this way....I kit built an LT-40 once.....modified it quite a bit...lightening holes.....decreased the hor stab area and the vertical stab too, along with the control surfaces.....but increased throws..... on ailerons increased throws...... took out the dehydrial looking for a better roll rate......oh yea added winglets for a slower stall....what did I have after all that....well I had a great flying LT-40 with winglets, a slower stall speed.....You know what it flew just like an LT-40....
I guess a trainer is well a trainer