My old '75 Fuji has it's original SunTour Compe-V with a Sakae 28/38/48 triple as well. It works just fine. I had been thinking of upgrading the FD to a Vx or Cyclone, but then I start to wonder why fix something that isn't broken...
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'75 Fuji S-10S bought new, 52k+ miles and still going!
'84 Univega Gran Tourismo
'84 Univega Viva Sport
'86 Miyata 710
'90 Schwinn Woodlands
Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time