I am installing a campy record front derailleur and it is supposed to be compatible with double and triple setups. I notice that I have to throw twice to shift to the big chain ring, but only once to downshift. Is this the correct behavior? IF not, how do I fix this? I've been reading the service manual that comes with the derailleur, same as the one on the campy website.
What year brifters do you have and what year is your fd?
Is the crankset double or triple? If double you should be able to shift either way with one sweep of the shifter unless it has been trimmed to the extreme left side, at least that's the way the shifters I've used work.
With all of the cable out of the shifter and the FD closest to the frame there should be no slack in the cable.