best trainer
Big advantage to a .60 sized trainer, with a good 60 engine or bigger, is that you can transplant engine to a different plane. Most .40 trainers if you get combos, come with the weaker .40 engines. If get a .40 size, try putting a good .46 in it, that can be used in future planes more easily then the OS LA types.
Although my magnum .40 that came with my trainer seems like a 46, it is that strong.
mill