Download the scaryputter analysis spreadsheet. This follows the methodology used in the book and allows you to input your own views about the merits of different grips and putters. It will then calculate a ranking of the options based on your inputs.
You can also make an estimate of your Putting Handicap.
If you are downloading the spreadsheet, I hope it means you have read the book already. If so, can you please provide a review of it on Amazon? Login, go to Your Orders (top right), choose the book and click on "Write a Product Review". Many thanks.