I spent some time in the shop getting my bearings as to where I left off on the seats. I scribbled some numbers on a pad to remember, but it didn't work for the remembering part. So using the numbers and some guesswork, I was able to use 3/4in conduit and practiced making seat backs. I'll get one more practice piece to confirm my measurements, but it should work great! I'm using a Ridgid 35175 Model 368 bender for 3/4in conduit. Don't hate me, but I bought both the 5/8ths and 3/4s benders at a yard sale for less than $100. The bends are predictable and repeatable and that’s what I want.
