Mm, ok. I'll have to look into the modules then. Though I think homemade transmitters are legal if you stick to the regulations - found something I think is relevant here (not sure, mind), under exemptions - http://stakeholders.ofcom.org.uk/enf...nforcement/law

Are motors easier/cheaper to use than servos? I thought servos were meant to be easier, but from what I've read so far they're actually a bit more complicated? Especially as they may need modifying just to work!