Made the angle cut on the F-1237C seatback angles. I don't have a band saw, but I'm getting pretty good with the dremmel cut-off wheel. It's my preferred method for separating pieces like the F-1237D and the F-1237G. It takes a little while to cut through the thick angle pieces, but just need to be careful. I just filed it smooth afterward. The next step is to deburr all the edges for all the angle parts.