Thanks very much,
The blank was cut from another corner panel & Dave tack welded it first to stop any distortion before butt welding it - I guess through experience on working with this sheet thickness he knows the right power settings and wire feed rate (I haven't seen a gauge hidden away anywhere!)
If I were to do it it would end up a right old Sh*t pile...
I'm hoping for some paint to start touching the sides next week some time - I can't wait!
keep you posted..