Campagnolo Super Record H Screw I am having trouble adjusting the shifting on my Campagnolo Super Record rear derailleur. I have set the high and low limit.
I think the main problem now is that the jockey wheels are too far away from the cassette (around 1cm when it should be 5mm). I tried to do this with the H-Screw.
However, when I turn the H-Screw... Absolutely nothing happens. Nothing moves, I turned the screw until it cam out, put it back in, not a single change.
So my question is: How is the H-Screw supposed to work? Is there a spring or something that I may be missing?
In this photo, the H-Screw is fully extended:

In this photo, the H-Screw is fully inserted:

Here is the back view:

Side view:

Is it possible that my chain is too short, or that the derailleur hangar is bent? I can't think of any other explaination.
The H-screw aka b-tension aka angle adjustment is meant to be adjusted in the lowest gear position for any rear derailleur where the guide pulley is offset from the cage pivot, which is most of them, including this. The manufacturer recommended distance will always be for that position.
For conventional road derailleurs like this, that 5mm number really means just short of the chain rumbling in the low gear. Two ways of saying the same thing.
All that said, it's not likely the H adjustment is your problem. It's a subtle adjustment and won't make or break shifting in most cases, the exceptions being if it's way out for no reason or on a derailleur with excess pivot slop from wear.
It's likely you're dealing with one of the common rear derailleur maladies Iike hanger alignment, cable friction, incorrect tension, etc. Hanger misalignment is a likely candidate from your pictures. Eleven speed has little tolerance for it.