I am having trouble shifting to the big ring on this Ultegra 10S setup.
the bike (a Fondriest aluminum) has a FD braze-on tab.
I can't seem to get enough outboard throw, even with the limit backed out completely.

To try to trouble shoot the shifting problem, I thought I would swap out the FD and try some alternates (who knows? Just trying to narrow the options.)

However, swapping a FD-6500 for the original, troublesome FD-6600 (and then trying a Dura Ace FD), with both the swaps, I cannot adjust the line of the FD cage to anything close to parallel. Both the alternates have the tail of the FD toed waaaaay IN.

I am using the little scooped out washer between the tab and the bolt. But still, when I crank the bolt tight, the FD spins in. and seems to have only one happy position (misaligned)

Is it typical that certain FDs just do not work on certain frames?
Or am I (once again) missing something.

The first 2 photos below are the original FD-6600

This setup by the way has a Hollowtech BB / crankset on which I fear I cannot adjust the spindle position laterally and so cannot adjust the chainline (which otherwise would likely solve all my shifting problems.)
the 2nd set shows the alignment of the replacement/Tester FD-6500