@vkess I'd think that whatever control scheme keeps you closer to your plan is the right way to go. Sometimes that means a gas adjustment, sometimes it doesn't.
There was a class at MICE and Expo (and retreat next) that so far has been building up a good set of data in support of the view that as long as you're hitting your development milestones and end at the same times and matching your end colors, people can't reliably distinguish between even very different machines in a blind triangle.