I don't think the Superstar needs them; but depending on how you install the servos, dual aileron servos have the benefit of crisper aileron control. You can then experiment with using flaperons once you have soloed.

For some, this type of experimentation is half the fun. e.g. I've now got an OS FS70 engine on my LT-40 with a 4 blade 11x6 prop. Is it necessary? No, but it gets some looks and goes well....