I recently had a load tested with blue dot.. because ive got a bunch and it was commonly featured in older manuals but with different components. Pressure was in the 7-8K range and fairly consistent. It is not "clean burning" by any stretch, So i stocked up on unique (thanks to some friends) and use it for 5/8 and 3/4. I wouldnt classify the unique as low pressure though, at least in 3/4oz.
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