On my new Shimano groupset, I had the cable on the wrong side of the mounting bolt (inside instead of outside IIRC), and it made it almost impossible to shift up. Re-attaching it on the outside of the mech made it light as a feather.
So on image below, cable came from under the BB on the far left, and then bolted around the left half of the mounting bolt, instead of going underneath and round to the RHS
(I also know old SRAM is known for having issues with the FD but thought I'd put that out there)
(Please tell me to knob off if this is obvious)
On my new Shimano groupset, I had the cable on the wrong side of the mounting bolt (inside instead of outside IIRC), and it made it almost impossible to shift up. Re-attaching it on the outside of the mech made it light as a feather.
So on image below, cable came from under the BB on the far left, and then bolted around the left half of the mounting bolt, instead of going underneath and round to the RHS
(I also know old SRAM is known for having issues with the FD but thought I'd put that out there)