Originally Posted by
Piff
Though, thinking more now, I guess that's to be expected because the thumb shifts will be aided by the cable tension...perhaps once setup on the bike this will make sense.
Yes, the Campy Ergo design attempts to balance the forces so that both upshifts and downshifts feel the same on the road. When they're not installed, it acts very weird, often skipping over gears in one direction, because the forces are out of balance without the derailleur pulling on the cable.