According to http://frogtape.com/How%20FrogTape%20Works.aspx (warning - loud music in the video) it looks like Frog Tape's special properties depend on interaction with the water in latex paint for its efficacy - I dunno if you'll get any better result with a non-water-based finishing product and Frog Tape than you'll get with blue masking tape, or any other masking product. I'd be interested in your results if you try it, though.
Peace
Bagman