What size polyurethane rings on slings? I bought original size 2 id and seem way to small. My slings engage about 1/10 as much as they use to and I'm afraid it's putting to much pressure on the posts. 2 1/2 id or maybe even bigger? Someone must have right size installed. Lmk thanks. BTW I did my machine in orange translucent and it's poppin!!

Nothing to do with the switch gap, as the ball is not strong enough to push the tight 2 id polyurethane into the switch. It only activates on about 1 of 10 hits now. Put any other 2 id ring in and ball is getting zapped all over the place.

So tight I'm taking them off as they'll be sure to damage my game. Here's a pic, second one is me trying to pull on it with no give at all.

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Actually I'm not sure what they are, it's the brand cointaker sells. Stretching not gonna work on these imo.

Thanks, wanted to be sure 2 1/2 would be big enough before ordering again.

Tom's metallica:

So I was playing my met pro and during multiball the left flipper stuck on. Just as i realized the fuse next to the flipper coil blew. Put a new fuse in and just as I expected left flipper engaged again. I hurried up shut off before fuse blew.

Fact: it's not mechanical as flipper goes down when not powered, also moves freely when off.
What I suspect: if recent memory serves me right I recall someone else with a modern stern mention same thing said it was transistor.
Any and all helpful advice appreciated.

The bad: never had to make such a delicate repair.
Good news: I'm getting a nice soldering station that was recommended here from my wife for Christmas.