Originally Posted by Diver Dan
...pretty close to 90 degrees from the straightest visual line...
Really funny you should mention that number (90 deg.). That's where the spine was on at least one section of the first two rods I looked at. I thought I must be doing this wrong. But, no matter how many times I did it, at least one of the pieces always came up the same, with the spine at 90 deg. to the guides.