I gotta love this web site.....I have been using various editions of the Sierra program for years.....I saw you said you used zero degrees, and I though you were talkin temperature!!!!!! I figured you were lost in space.
I didn't have a clue that you can plug in up/down angle. Sheeezzz......you would have though a numbers nerd like me woulda/coulda/ shoulda figured that one out about a hundred years ago. It was right there in front of me all along!!
Now I have a WHOLE NEW SET OF PERAMETERS THAT CAN PLAY WITH NOW. Maybe now I can be at least slightly educated about the whole up hill, down hill thing.
I am soooooo excited. I learned something today...on a hump day, no less!