Originally Posted by
bradtx
.....the FD should match the new crankset's chainrings for best results, IMHO. A compact crankset should have a FD meant to be used with a compact, a double FD with a double crankset and so on.
Using a double or triple specific front derailleur is a good idea but there are no "compact-specific" front derailleurs. Shimano and SRAM always specified their regular double front derailleurs with compact cranksets. Campy at first came out with compact specific front derailleurs but even they have dropped them and now recommend their standard double derailleurs.