Thank you so much for the write-up. I am an extremely visual person and this definitely helps out a lot for somebody that thinks like I do.
I've torn into my bike several times on the upper end and on the sides, but never down to the cylinder jug. Now I know how to do it.
It might be time for the 688 kit, I'm curious if you were swayed by either 688 or the 685 kit more?