Quoted from Fytr:So upon review the trough “ball detect switch” blades are clearly supposed to be completely straight. However, it seems like the model Spooky is using has a design flaw or something. I ended up replacing mine with Williams ones, which worked perfectly and I suspect will continue to do so. (https://www.pinballlife.com/index.php?p=product&id=384)
The Spooky/Stern ones have the blade end bent and embedded flush into the switch body and the blade needs to compress a hard rubber “ball” to close the switch. It seems quite difficult to do so, in my case the blades were simply bending around the ball as there really is no space for the blade to pivot down onto the ball.
The Williams ones mount the blade on a raised section on 2 pivot points over a typical plastic microswitch peg and they easily close due to the increased leverage and lighter resistance in the switch.
So if your trough switches start acting up...
I think you did this when you were trying to adjust your switches earlier. Adjusting a switch's blade is far more subtle than closing the gap on a leaf blade. Very minor bends make a big difference. When you adjusted them, it looks like it was too much and introduced full bends into the blades, it made them lose their proper action.
For adjusting through switches, just a tiny flex right near the actuation point has a big effect. Also, keep in mind that flexing the blade so the roller is a tiny bit higher is how you add pressure to the switch actuator. But flexing that blade too much will cause ball hangups or bad registration.
Finally, if you adjust too far, you need to flex the blade down in the same spot or you end up with a wavy or twisted blade.