I never saw more than 2 of the 3 red master maps. I thought I looked at them both, but apparently there was a third? Is there a chance that 6 was the one mis-marked on one of the masters?
I'm glad I got numbers 4 and 7 to where they belonged before you got there... a shame that I messed up 6 in the process.
I tend to follow the good advice of never moving anybody else's controls, but after spending 20 minutes looking for 4, finding it a little over 100 meters from where it should have been (and not in the most logical place to look), and realizing that I was still ahead of everyone except Adam
who had just caught up to me, I figured I could save everybody else's day by repositioning it. So, then when I hit 6 (again well ahead of Adam), I figured I'd search until I found it and put it right. In the process of hunting for 6, I found 7, actually quite close to where 6 was supposed to be. By the time I finally found the real 6, at least a couple people had punched 7, thinking it was 6, and gone on to hunt futilely for 7, some 400 meters to the west. So probably almost everybody but me (and you) was missing control 6, although the ones that got around me had punched 7 thinking it was 6 and then didn't find anything at all where 7 should have been.
Great map; it is a shame that controls were so poorly placed and that some were hung on unmapped features (two single trees that were essentially "bag in forest" although at least they were within 50 or so meters of where the circle was centered, in areas of decent visibility.)