Had a Vector and sold it, but really liked it while I had it!
Just a short tech-tip to any owners reading:
The Vectorscan timed shot used to always seem to read up to 999 really easily, kind of a drag.
After messing with it I finally figured out that the entry switch would "bounce" back and forth when hit, and would actually trigger a couple times while going to the 2nd switch to read the time.
I gapped the entry switch to barely make contact when the ball passed through, thus eliminating the additional reads.
The result was lower times that didn't peg at 999 quickly, and made the game play as it should.
Hope this might help some Vector owners that have the same problem.