That shotting calculator has been around for some time now. It used to be on a site called Moo-Poo, (no, I'm not joking). And I'm sure that it has been posted on here before some time ago. Maybe in the archives of the old site now.
Start Download Fishing Shotting Calculator - Use this free angling app to customize your fishing shotting patterns. The total weight of the shots you choose will be shown in the box at the bottom. Both shots and styls weights are supported. Instructions: Select with the arrows buttons th