Quoted from markmon:
You generally do not fix VuK aiming issues by loosening the screws holding it and repointing it. It's just not what you do to fix this. So that's a complete dead end.
This discussion reminds me of the RGP "VUK discussion" over the lower to upper playfield kicker on Haunted House, WAY BACK IN TIME.
Oh, how the fun times. Predominant cause of troubles? Worn ball holes, assemblies, alignment, coil burnouts, electrical shorts, etc.
At least Black Hole was a *little* better.
There sometimes ALL sorts of adjustments that need to be made in terms of alignment, the vertical wireform positioning with the screws, the alignment of the VUK itself, the functioning of the assembly and any potential "slop" or "tightness", the ability to center the ball on the VUK, and so on.
How is this relevant here?
"Fiddling with screws" on the ball VUK receiver is not a technical solution.
You have to take a close look at what actually is going on.
For example, when I was overhauling my WH20 recently, the ball was not getting up the shooter lane ramp smoothly via the plunger.
The spring used had more than enough power to do the right job as per factory specs.
This was being caused by THREE reasons, the alignment of the ball in respect to the plunger, the lane guide with the ball release into the shooter lane, AND the wire form itself that had a very slight misalignment.
I guess my game is defective too...right?
Small things DO count, A LOT.
This is what you have to do to "dial in" your game, and in some case you have to modify your OWN GAME to actually work better than the way it left the factory as every machine can have its own nuances. Sometimes I have had to make my own rail guides or even protectors (before they were made), in order to do the job that the design engineers forgot.
Just ask Cliffy, if he knows what I am talking about here.