I came back to the hangar this evening to tackle aligning the spinner again. We are having the mother of all rain storms! The water is seeping in under the doors.
I checked the alignment another way. I set a piece of metal above the spinner in a number of different positions. I would spin the prop and it was easier to see the movement up and down of the spinner.
After oodles of tests, I think the spinner is as close as I'm going to get it. I used a dozen clamps to keep it from moving!!!
