Does GFB offer a total cost savings to some customers?
Anybody on GFB that has saved money on an annual basis vs. being on standard rates? If so, how much cheaper is it vs. averaging?
From reading the rate sheet it looks like OG&E predicts your bill based on the last 12 months of use and adds up to a 10% "risk factor charge".

http://www.oge.com/Documents/OK/3.40%20R-GFB.pdf