Should have gone to Enigma
Took mine to Enigma a couple of weeks ago, met Mark, very friendly chap. Posted back the next day, weld certainly looks better than the one pictured above, plus as it is on the BB shell you can see inside where it has penetrated through. Proper job by a bloke that knows what he is doing. Cost £60 including posting it back.
Perhaps the welder should have gone to Specsavers