I've never heard of that circuit rule, but maybe I've been cheating myself the entire time. Just start with whatever holds seem most logical (at least up to blue/red circuits). Occasionnally you might find a painted dot to indicate starting footholds, and even more rarely a dotted line to indicate any holds that are out, but that's very much the exception rather than the rule.
As for Little Karma it is a jump start, after all if you do it statically then the reference to the "other Karma" no longer holds. I'd say the only way to cheat this problem is if, like me, you climb it on a collante day. A few weeks ago conditions were so good I just had to blindly slap the rock and my hands would stick to it no matter where they landed, I felt like I didn't even deserve the tick. Will go back this summer on a 35C day to properly earn it.