When I tested, I could make very small soft glass beads when I had two Crickets hooked up to a single 5 LPM machine. I preferred having the bigger flame that 5 LPM provided. Whether you would be happy with that is entirely up to you. You could hook up one Cricket to one DeVilbiss and dial it to 2.5 LPM and see what kind of flame you get and see whether or not you like it.
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Kimberly
working glass since 1990 - melting it on a torch since 2002
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