I read your journal often but rarely comment. I see a few things with your overhead squats and front squats that I think could help you though. On the OH squats really elevate your scapula as much as possible - so much that it feels uncomfortable to hold the position. Also, hold the weight farther behind your head - it looks like on the concentric you are tending to fall forward which to me signals that the weight isn't far enough behind you - it's aligned over the toes. Push your head through the hole and I think you'll find the right position. The same thing seems to be happening on your front squats - if you look at the bar path, when you hit bottom you tend to let the weight go forward and then have to pull it back towards your heels when you get closer to lockout.
I think you are squatting in Chucks which makes this stuff harder, but just work on holding the positions throughout the lift - for front squats I always try to cue myself with the "elbows to the ceiling" rule. It helps me stay tight and helps me sit back into the squat which minimizes problems with losing the weight in front. For OH squats I just try to lift my scapula as high as possible and stick my head through.
But you are strong as hell - way stronger and more experienced than I. Your deadlifts and pistols are truly impressive.