Who can help here. New levers (Chorus), new cables (genuine Campag) and a couple of seasons use Record rear gear.
On engaging a down shift, just not moving down - or moves after a few rotations of the crank. Or I have to double down-shift to get it to move quickly.
Probably done 300 miles on this new set-up, so should all be bedded-in.
I've undone & loosen off cables before retightening, have also adjusted up/down the cable tension, still slow on down changes

Anybody had a similar experience & tips?
Cheers.