Interesting thread! Lots of settings I'm interested in trying!
My SV is a bit different in that I'm running a couple of Tung-Sol 6L6 GC's in the power section, and a Tung-Sol 12AT7 in V1. This gave it a warmer tone and more headroom, but still plenty of "crunch" when pushed.
Current setup is jumpered and settings are 6-4-8-2-5-2, but again...always tinkering.