Thanks for all the feedback!
Would you believe I actually use MIG. I've been welding 3mm rod together for about 4 years now, so have managed to keep welds tidy. I know there's a difference and I'd love to TIG, but for now, in my 2m x 3m workshop, MIG will just have to do.
Remember, I can always do special mods for ramps, if you feel like a change, ie: spiral ramps where once there was no spiral. I might have to invest in a few pinball balls, so that I can test tracks easily.
Dendoc - really great to see my sculpture again.
Anyway, for now... you know where to find me.
Cheers
David