Good concept for optics

I've voiced my opinions on 1st focal plane reticles on low power optics before because I think it's a ridiculous concept for the most part, but then I read Kyle Defoor's post on the U.S. Optics SN-4S and how it has a reticle on both planes, and I was impressed. What a great idea. The large outer ring stays the same size between 1 - 4 power, with only the ranging reticle growing in size.