first just want to say that maybe I'm over thinking this one and I haven't spent a good hour under the hood trying to figure out the issue I'm having with these WCS94 flippers.

I put a new fliptronic 2 board in, as the original was missing.
I also noticed that a diode was missing on the left coil (replaced the diode correctly) while the right coil is new. Both are the correct coil sizes.
I noticed the right coil was new/replaced but would not ''hold'' and noticed the left wire had come off the left lug of that coil- replaced and it holds now.

What I can't figure out, and I don't remember experiencing this in the past, is why there is a subtle ''pull'' at end of stroke that pulses. You don't really notice this while in game, but if you lift the playfield you can see it pulsing slightly, glass of and with nothing going on, you can hear the pulsing too, it's slight.
I'm thinking eos? But I replaced both with new and they are open and gapped correctly, along with new coil sleeves and stops. My solder on the lugs looks well too.

In game it will make strong shots and other times it will make half limp shots. Any ideas? I have cleaned the flipper opto switches as well.

I feel like my bases are covered but I'm going hmmmm for the moment

thanks

Both flippers are acting this way. The wire was soldered back on with bare wire, and the hold returned.
return springs are fine and wouldn't be the issue.

I have tried a known good coil, same results. Tried different ribbon cable and cleaned the flipper optos again, same results.
This one is trying my patience...

Okay, so I can mark this one solved. After checking everything I did on my end, I couldn't find any faults, which lead me to the driver board I bought at Allentown for this game. It is a good condition board that was repaired by Clive, but that's all I knew about it. Once I popped my TAF board in, BOOM- strong flippers that stay strong and no flutter at all. Now to find out why the Clive board is making the flippers do that.

Nope. All is well with the TAF driver board in. The driver board I had in the game is where the problem is.

flipper boards? fliptronic? The flipper problem is resolved.

The issue I have found now, is a fault within the board that is making optos fire. In WCS94', it makes the vuk striker go off at random. The same driver in TAF it will make ''thing'' optos not work/or registering when they shouldn't. I'm thinking flaky bridge rectifier or cap.