4door, cannot answer your question about mixing the solid into PG as I've only used PGA.
As for the mint, no, menthol taste like menthol. Which is a good thing because it is menthol afterall.
If you want an undertone of menthol, then a tiny bit of spearmint or peppermint would do the job. I like wintergreen and menthol, but that seems to be less popular.