Experimenting with PVI on GG

For those that don't know, Player Value Index (PVI) is a hidden variable that determines to a large extent your rakeback on GGpoker.

My latest Fish Buffet pop went so slow that I have to think my PVI is quite low.

I was wondering if anyone has experimented with raising their PVI, for example through a weekly small deposit.

I may try to experiment with this and post results.