Originally Posted by
fietsbob
Is the tab a steel part , [?]
+1 , Has the frame been checked for derailleur tab alignment?
Its not automatic, it may need some tweaking..
You jumped into the deep end of the pool with Ti Frame and the latest parts.

The tab is aluminum.... I'm not sure about checking it for alignment - it looks pretty good to me (flush with the inner face of the frame) when the wheel is not in there. It's more the clamping pressure of the wheel skewer that is the problem - it makes the hanger rotate.
Yes I did jump in the deep end of the pool... first real road bike, first frame build, $2K frame.
The most frustrating thing is that the bike is almost completely built and looks awesome, and feels like it's going to ride great. So close to biking happiness, yet so far....