Stealth edit above. I have reset everything i can in the ipad app but don't have a PC for full cabled access.
i see. not sure by how much things are offset compared to a regular link, but if indeed fairlight use a custom one for di2 derailleurs, it could be that the di2 cannot compensate.
I don't believe there's anything that alters the basic ability to shift other than the trim value you already have access to.
@Glws started
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Stealth edit above. I have reset everything i can in the ipad app but don't have a PC for full cabled access.