I mostly do it the Phrozin way, but I have seen others use the Dikkybee approach, particularly when there is cracking in the binding so that you get stain seepage. Both of mine with f-holes have solid color tops, so I didn't have to worry about stain seeping in. However I do end up doing a bit of scraping in tight curves and corners where the 3M tape tends to come up a bit.

I am really intrigued by the Cricut cutter. It seems to serve of uses. I scan a lot of my templates to PDF so that I can reproduce a paper template if I ever lose or damage the original. That said, it's a bit tricky to make a flat template directly from an archtop. You might have luck if you can find a match to a G-type template on-line. If you think you have one, I'd cut it out and match it to make sure before Cricut-printing. I have two ES-335 bass bodies that are identical in their basic shape and identical in their control layout and placement. However, the are different in where the pickup cavities were placed, and one has f-holes that are slightly larger than the other. Hopefully you'll get lucky!

If that fails you might be able to reproduce at least the outline of the "hole" part of the f-hole by taping a piece of paper to the top and taking a rubbing...which is how I got the dimensions for my ES-335 control layout ;-)