Thanks a lot Andy, that info helps. I tried some fillets this afternoon, didn't move the tubes around enough to let gravity help(doh!), so I had lots of mtl where I didn't want it. Pretty sure I had the flame a little too big/hot as well. I used an old Purox with a #3, but I'm not sure the torch was working/metering the fuel as it should. I have a victor(larger torch body) that I'm more familiar with, I'll practice with them both and see how it goes.
Brian