Pesky wiper problem...

For those of you who are having trouble with wipers, and missed Ken's volumns of advice, this months (June)issue of "Corvette Fever" has a letter from a reader with an excellent answer outlining what you should be doing to test.
Ken, many thanks again for your help. I'd almost given up on them until something you said rang a bell. You said if I didn't get the results I should at the wiper switch plug to reverse ground and wires.I wondered if I might have turned the switch plug upsidedown. This was last year when I had the dash apart. It is possible to put this plug on reversed, & it sure gives you some weird results. Reversed plug and all working again!! Once again "Meester Ksyter" comes thru.
Now I can sleep again.