Is it snake oil or does it make a difference?

This particular one has good reviews on Summit and I have always heard good things about Lucas's products. Granted I know that nothing will take E-10 87 swill and turn it into 106 octane race gas...

I picked one up on and order while I had free shipping.

In my case I am right on the edge of pinging. I curved my dizzy so it won't ping at WOT but on hot days 80*+, I can get it to ping at 3/4 throttle or so. I'm sure this is because of the vacuum advance on the dizzy but I am trying to not have to disconnect it.

What say you?