Just recently got all the coils working on my Barracora with the memory drop targets.
However sometimes at the start of a game they will not all reset in the up position.
Sometimes the machine will try multiple times to get one to stay up the then eventually just gives up.
Other times the game works flawlessly.
What would be the first thing to try to makes these more reliable?
They are the old original targets and I know something has probably just worn thin and is not catching properly.
What would be the first things to try with these before just replacing them?

OK. Here are some photos. Though I did find something out while taking them.
The Drop target that is effected the most is the very bottom one.
I noticed that if I push it up by hand the target stays every time.
I then noticed that the little foot that pushes it up does not quite go up as high as all the rest. (Not sure why yet).
That little gap shown in the last photo is where my coil stops. This allows the target not to grab and it falls back down.

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Solved.
Someone had put the washer on the wrong side of the little foot that pushes up the drop target.
Swapped those around and had a working drop target in under 2 min.