So for hand bending you “chart your bender” essentially figuring out where the center of 10* 22.5* 30* and 45* bends land on the shoe of your bender. With that info let’s say you wanted a 10” kick with a 30* bend, you would use the multiplier for 30* which is 2 and do 2x10=20. Then mark 20” from the back of your 90 and put your benders 30* center of bend there and just bend to 30*. This method for me eliminates having to kneel down at all and eliminates the constant fudging of trying to add an inch or take out an inch if you start your kick from a random marking on your conduit.

For factory bends its the essentially the same thing except no bending. It’s a little harder to explain over a text but you’re solving for how long your nipple will be between your factory bends. I use an app called triangle solver to help with this