Jimmy, yeah thanks to your warnings, I pretapped the A12 parts with a new M3 tap I've had in my 'big car' toolbox for a while. So far they are the only bits I've fitted, didn't want to go any further if I was going to have to buy a new hex driver. If its a common thing with Ti, then I shall plough on with the build. I just thought the genuine Tamiya bits would be good quality (there is a mug born every minute I guess) especially @ £20 a pop. I didnt realise Ti was soft, I assumed it was light
and hard, I've learnt something new today (2 things if I include the fact that I am a crap driver and need to practice...a lot

!!).