RE: IS THIS A GOOD TRAINER??
Only negative is it's made out of corrugated plastic cardboard like a SPAD and is a little heavier than a normal trainer as a result. Super Tiger 45 should be fine, don't use a 40. I don't have one but a member of my club flies the sport version with a shorter wing span. You could look on the SPAD forum and probably get a better answer.
John