Clickbank Gravity?

Anybody have any feedback on the validity of clickbank's gravity percentage? I've noticed that more than one product listed has had the same gravity, same exact gravity, for the last 4 months. Isn't this a number that can be easily manipulated to get affiliates to push products that just aren't selling? Can this number be trusted?

It can be manipulated by making hundreds of clickbank accounts and purchasing through your own hoplinks to raise up the gravity although im not sure many people are actually doing this.

I know some people use to run scripts that would insert affiliate cookies when there was none already and it rotate through a bunch of accounts to raise gravity. Idk if CB lets people get away with that anymore though.

It would be very interesting to have a tool to increase gravity. Do you recon any?