RE: trainer to 1/4 scale
If you are really a good pilot on the 40 sized trainer, meaning you tell the plane where to go and you land it without doing the Bunny Hop and its always a good slow 3 point landing then there is a very high likelyhood you can fly the 25% Cessna. Still its a likelyhood only. Bets not to go for something that big that fast. Better off going with some nice agile low wing trainer fist. Perhaps a WM SS40, its more agile than your 4* or Tiger II. I learnt it the hard way ... always wanted the 182 but after a couple of years flying I got the WM EP Cessna 182, man it flies like the big thing ... will stall on you if you are not careful. Its no high wing trainer for sure. The H9 Cessna is very purtee ...