I run my Scorpion on a Regalia at 7-8 propane and 9 oxy and don't have any problems. I run a very oxydized flame for boro but cut way back on the propane. I absolutely love the Scorpion and bought it so I didn't have to buy another Regalia ($$$) and I can't imagine ever needing another one. I had a Lynx and this torch blows it away for boro.
Maybe you're torching too close to the barrel? Other than that ... I can't think of a reason it might be doing this to you. If you call Wally, he has been very helpful to me when I needed answers about the Lynx.
Good luck and happy torching.
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