Re:
Holes are a bit chewed up, but have the correct tool (pin pliers, not crap ones). The other side came out easily, this one was hard from the get go and only moved a bit before it moved no further. I've taken it to the lbs who also couldn't budge it, but they did at least say it looked to be straight and the threads would be fine once out. They didn't want to force it but couldn't suggest a way of removal aside from cutting a wedge out and peeling it out. I can't see how that would work with the bolt in situ, and haven't gone down that route yet.