Thanks for your kind words and advice. I'm really comfortable with the way Moi works after going through the tutorials. It feels natural and intuitive very quickly.

>>Fillet then Join.

Ah ok that looks much better. I'll try that again and do some little tests like you've shown. I figured it was a tricky join but your example makes it very clear, :)

>>Not vertical. Arcs and tangents not quite aligned.

I was getting slivery bits joining these parts. This was why... I see. That was the best join I could get, I must have nudged them off vert at some point while tweaking. I didnt use the " Arc tangent " tool on those side profiles either, I just eyeballed it...oops . I'll look into that in the docs.

I've got lots of ideas to play with now. Thanks for your time, suggestions and explanations. They are much appreciated. Regards Wheel.