Quoted from harig:TAF is the first fliptronics game so I assume it is not tungsten contacts but low current (gold?) ones. Filing them might not be a good idea
TAF is Fliptronics 1 and has regular "old school" flipper switches, not gold (see the pictures above please).
Although gold switches can probably be used, original games didnt come with them. I think Williams was just using up existing inventory.
All of the regular TAF's I have restored have had beat up tungsten flipper switches. I usually replace them, but they are a pain to adjust. Since this is the last TAF game in my repair queue (and the worst) I decided to upgrade the switches.
TAF "Gold" is fliptronics 2.
The infrastructure is "in-place" for opto switches on a regular TAF.
Its a simple upgrade but plays exceptionally well, and better IMHO.
After doing it, I recommend that all the fliptronic 1 games do the upgrade, (there are only a couple though).
This mostly has to do with eliminating switch adjusting and regular contact cleaning.
Gameplay wise, the flippers are snappier and respond a bit faster.
Perfectly adjusted, brand new "standard" switches also play very well, but this changes as the contacts age and wear.
For the casual "home" player and owner, this upgrade solves tons of issues.