While we're on the subject, I have a question about Rosette welds. With the
specified hole size in realtion to the thickness of the metal, I have a
hard time getting the metal underneath to heat up enough to melt before I
blow away the metal on top. I have preheated the innner piece as much as
possible and this does produce better results, but It's still a bit hit and
miss. Is there a trick? Smaller tip? Bigger?