I have an XT front derailleur that will not shift down.
I have brand new IRD thumb shifters, new cables, and housing.
I move the front shifter to a lower gear, the cable gets loose, and nothing happens until I unclip and kick the derailleur, then it shifts the chain down.

Any help to fix, or should I just buy a new derailleur?
I took the derailleur off and cleaned/lubed it- worked great for a day or two. I've even tried lubing it every time before I ride, still no luck.

The other problem is that I need a top swing/bottom pull derailleur which is hard to find. My crank is a 9 speed Shimano 105 30/40/50.