Thank you all for your responses. As it turns out I may well be able to stretch to 2 models. I've got a Blackhorse Super Sport with crash damage which has a 40 SC 2 Stroke, which I can put right, and I have just purchased a Seagull Pilatus PC-9 as InwoodModels had a very good price, and one of the boys instructors said he would teach the boys some tricks with one! I now need to decide whether I fit a 46 ASP or a 52 ASP & still have sensible control. I can see my 'cheap' hobby (as far as the wife knows) becoming visibly more expensive. Timbo - Your right, looks matter, hence the PC-9, also I've promised to make the SuperSport look the business with lots of fancy trim, just to match the PC-9! Shame, brown packing tape looks very fetching to me ............