Quick update: Last night, after helping a friend move, I got to building up the 620. Between that, dinner, and Tour de France highlights, I was unable to get it done in time for a sunset maiden voyage. Threading the rear shift cable through the chain stay was not happening, and my under-the-down-tube Ribcage bottle cage was about 3.5mm from the 39T chain ring, which means I need to wedge/angle that cage away from Chorus crankset, or employ some standoff spacers a la vintage Cannondale ST's. This would not be an issue if the crankset were my triplized Dura-Ace units, but the present issue is not insurmountable. A few snags had to be expected even if I didn't as "they worked just fine on the other bike." I will say the bike is looking
good, and that the choice to go satin black was the best one I could have made. Oh, and it's a bit lighter than I thought it was going to be.