Thanks. I aim to swerve.dr_dave- Your website is awesome.I think your image best illustrates the midpoint parallel shift aiming system. FYI, I've added your image and a link to your post on the resource page.

I like PJ’s illustration also, but I think both show the same info, just in slightly different ways.I have a question about the image on the resource page.
The midpoint parallel shift you show has too many variables (to me) that must be addressed.
The pivot from the opposite side of the OB contact point, from Patrick Johnson, seems better.
I use DAM.Could you please explain what aiming system you use?
Regards,
Dave