Hey Scott,
I did not know that you were so close to me. I am north of Fremont about 10 miles give or take.
You do have to use the LATITUDE scale when setting up your motor. 41.1° seems right for the Omaha Metro area, although I don't know how far south of me you are... North around Irvington or further south nearer Papillion? Regardless, you know where you live and if you use Google Earth to dial in on your place, you can read out the most accurate latitude and longitude for your use.
I do not know why the ELEVATION scale is present, but I suspect it is a leftover from older C-Band days where it was required. Now, it is just better for Ku band (offset) setups to look at and refer to the latitude.
Is this your first Ku-Band offset motor setup? If so, don't fret it too much. It will require a lot of determination and work on the first try, but then you will find one of those V-8 moments and slap yourself in the forehead and say... "Oh duh"! LOL
Have you read ALL the stickies that you can about setting up your motorized dish? Look for the FTA FAQ section. I posted a really LONG WINDED dissertation about setting up a motorized dish there. I didn't really write it. I took all the information about the subject and wrote around it. I think it contains a lot of the information you want to know about, in general and close to specific. Have a looksee on that.
You have your nearest true south sat nailed, 97.0°W, so that is a very good starting point. Here in our location, we are blessed in a way. We may not have the top signal for any or all sats, but we are in a prime location to capture the majority of them well.
When aligning your dish and motor, just be sure that you are patient.
Have fun Scotty!
RADAR (Gordy)