In the gear head communities, and especially the biker community, there is a dreaded, sometimes contentious, often laughable subject, "What oil is best?" and I think this one will probably be close to that kind of thing here.
I only have two scroll saws, I have tried this on both, and I can not see a difference at all when I stick the pattern to the wood, or first blue tape it and stick the pattern, or package tape it and stick the pattern.
Urban legend says, the tape lubricates the blade. Really? melted adhesive becomes a lubricant? And if that were the case, why doesn't the melted adhesive from just sticking the pattern to the wood also become a lubricant?
And if not the melted adhesive, melted plastic (clear tape) or melted paper/cloth (blue tape) does become a lubricant?
Then urban legend says the clear tape or blue tape is easier to remove. Not in my experience at all. Tape is at the most 4" wide which means it has to over lap, those over lap pieces of tape at the minimum have to be peeled off individually. And since tape tears so easily, I have yet to be able to pull off one 4" wide strip intact, which means more work taking those pieces off.
Then urban legend says, tape prevents burning the wood when cutting. Even when I was starting this hobby and didn't quite understand when to change the dull blade, I never scorched the wood (no tape by the way).
I stick the pattern to the wood with spray adhesive, cut it, brush on some mineral spirits, wait a minute or so, and the whole pattern lifts off. Then I wipe down the piece with a paper towel wet with mineral spirits and let dry. And if could find a way to do it with fewer steps I would.
So I guess my point to this diatribe is, does anyone know of an actual quantitative study showing that the urban legends concerning tape are true?