hi all been practising with my new mig welder, sip cosmo 130 gas/gasless and seem to be doing better than with my arc. using gasless/fluxed wire? however, i seem to be getting a lot of spattering and im not sure if this is down to technique, also when practising i have played with the wire feed and now cant rememeber my settings, now when i weld i can feel the wire hitting when its fed. also how do i tell if the weld is ok as i dont seem to be getting a weld pool mark on the underside, more of a scorch mark!!!, but the metal has a seam along the top and i cant prise it off. [testing to see if its crap]. any advice help readily recieved, as im starting to chomp at the bit and weld my camper van up, see thread: http://www.mig-welding.co.uk/forum/showthread.php?t=100 ooh that reminds me, malcolm, for the side bit how do i create a flange to help support ther floor panel for welding?