I've pushed a lot of front derailleurs, mostly SunTour. I've run 52-42-28 the past 40 years. My FW/cassettes were not big, 13-19, 12-21.

Running a Cyclone or the like with that wide range triple, the chain drags on the bushing at the rear of the cage. I replaced the bushing with a stack of tiny washers so the contact was steel on steel, low friction and the bolt is protected (maybe only for the next 500 miles, but that is 500 miles of pure climbing ) I also used to make the stack narrower than the bushing for more positive shifting. Yes, a lot more adjusting to do to avoid rub but rub never mattered a whole lot for those relatively few miles and I always had friction shifting so I could eliminate it any time i wanted.

I now run a Dura-Ace triple FD (new circa 2010) on my best bike. As much as it pains me to say this, it is the best shifting FD I've ever run.

Ben