Dear Hot Runr Guy,
Your link seems to give me exactly the information I need to solve my contrast/brightness problems. My friends and I are taking the boat out on Buffalo Bill Reservoir tomorrow (just a few miles west of Cody, Wyoming where I live) and we’ll follow the instructions with our fingers crossed.
Hope you and yours have a nice 4th of July weekend!
Bob J

Of course I should have posted photos. Sorry I had to make you ask for them.
Hope these attachments work.
Bob J.

Attachments:

1. 

   crestliner-gauges-6-scaled.jpg
   

2. 

   crestliner-gauges-2-scaled.jpg