Sure! I'll get one of those tomorrow... The soldering did look a bit dodgy in places, but I think it must be something with the components themselves or as Plargen said in that other thread about them, the software... if it's either of those I don't think there's much that can be done! I'll reconnect everything up too, just got some thicker wiring so I'll see if that makes any changes.

I do have a multimetre, and the discharge rating I think is about 30C and it's about 5000mah so it should easily handle both motors amp-wise I think