Offset bushing "pushes" the shock back 3mm or so at the eyelet. Obviously, that's not 1x1 distance wise, but once you are at full compression the shock yoke (black thing that connects your shock to the CC or stock link) is pretty much in line with the seatstay bridge. The CC link changes the position of where your shock yoke is mounted (some of how they get their effect on the leverage curve).
Flipping the chip to high does the opposite of what an offset bushing effect is - so you would not see what I am talking about and should have great clearance. It only happens when you have Lo +_ Offset bushing + CC link (a rare combo). Keep in mind, that i am close, but not touching with stock bushing, +flip chip in "Lo" + CC link.
My solution right now is no offset bushing (though I have a 50% offset bushing in route). It will put me at 64.25 deg HTA with the 170mm fork as well. I may add a small spacer to the EXT shock shaft to limit travel slightly as well. Again - I am probably in the minority with pretty drastically changing my levarage rate + geometry.
I will try to get some pictures next time I have the setup where it can "touch". It's hard to picture though.