Lloyd wrote:Nope, but if they look like ar*e then you likely wont get a WoF/cert with it
This is true.
Make sure that if you use a mig, that you use a high power setting and use at least .9mm wire. I made the mistake of using .6mm wire and didn't realise until I'd finished. The cert guy picked up on this and said "grind out and reweld". Pretty much, I had these nice looking welds just sitting on top of the steel with $$% all penetration.
You gots to have deep penetration!
I did grind out and reweld, on the highest setting I could without melting everything, and when I took it back he said "sweet".