VG mutes flavor in very high VG concentrations (>80%) only right after mixing and takes much longer to steep. But In lower concentrations (<60%) you will notice an increased flavor presence right after mixing. The reason is PG is a better flavor carrier because it helps desolve and disburse the flavor molecules more efficently allowing for quicker distribution within the entire mix. If you let a higher VG mix steep long enough there will not be much of a flavor difference between a higher VG concentration and a higher PG concentration. But you will notice that you will wind up with a sweeter mix because VG has a stronger natural sweetness to it. Much more so then PG.
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