I understand the "nose up" test and why it is performed. I have performed this test in the past up till very recently and may even use it again. HOWEVER, ever since I've learned to PROPERLY tune an engine, the nose up test always passes without adjustment.

Tuning seems to be a mystery until a person finally gets it right and understands how things work. After that it's, "Man that's soooo, easy! why did I have so much problem before?" .....and I just recently got it in me head

Thanks for the excellent work on the post and pictures.