And later on I decided to try double flaring the end of the practice piece once more. This time I didn't let the tubing protrude from the clamp so far and I left the very end on the tubing more so than the first time. Without filing it down I put it in the clamp for the second flare to see how it would look.
It didn't come out bad at all. The O.D. of the flare tube end isn't as wide and it might not be a bad thing. It just depends on the final fit it makes in the hardware that you have to work with. I probably wouldn't have a problem using either methods.
