Sunlight Adjustment Question

[nmoreman]

I have a question about adjusting the screen for best use in sunlight> The screen is great all winter, but now that I am going outside, boating and golfing, I cannot see the screen.

Running stock Diamond, have tried adjusting power/brightness screen to high, but cannot see screen.

Anyone have any good tweaks, adjustments, whatever? I'm sure I'm not going to be the only person with this issue now that we made it thru winter and summer is here!!!

Prefer tweaks, I won't do register edits, changes. Thanks