A newer gen might work, I use an R7000 FD with my GRX 2x setup, not perfect but works 99% of times. I would imagine a Di2 R8000/9000 would work as well?
About to try similar on this Arkose, what's the issue for the 1%...reduced shift ease/response at the x-chaining extremes?
Precisely
@KieranHC started
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A newer gen might work, I use an R7000 FD with my GRX 2x setup, not perfect but works 99% of times. I would imagine a Di2 R8000/9000 would work as well?