Thanks for your advices,
Unfortunately there aren't many lampworkers here to ask from. One guy I know uses same DeVilbiss 5lpm oxycon I'm considering to buy with his minor and he said it can easily melt smaller boro rod.
Recommended pressure for alpha is 8 psi and it should be same with concentrator. So I'd like to believe that with ~8lpm output I could do something with my centerfire even though it wouldn't be at full potential. Am I wrong?
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