hydrojunkie cheers for the reply. Hopefully will be compatible, centre wire positive in both cases as far as I can see, a wire swap wont be too bad if needed. I think there are 8 x Futaba servos in total in the stuff I have including a set of 3010 series ones. Thanks for the info on the gyro - I had one of those wee gyroscopes when we were younger, the ones you pulled with a string to get going.