I also bought a plow about a week ago. I had no experience either with it, but managed to get it to work pretty good. A couple things my dad told me to do:
1. Shine up the plow mouldboards with a power wire brush, it will pull easier,
2. Run the tractor up on blocks, I used a railroad tie, on the left side on level ground. Then I took a carpenters level and leveled it up.
3. Off to the field, I messed with the toplink until the plow wanted to find its own depth (which would be the same as the height of the rr tie, in my case)
4. While you are doing your set up plowing, stop the tractor and view the plow from the rear. See if the lift arms and top link are straight back from the plow, while it is in the dirt of course.
5.check the sod on the left and the right of each rockshare edges to make sure both the cuts are the same side to side.
6. I had to take the drawbar off because it hit the plow, be careful while raising it the first time to make sure it doesnt bind against anything.
obtw, I was using a kubota
L3130 hst also, R4 tires, unloaded. I had to keep the FEL on to give me more weight on the front to get traction. My plow was a JD 2-14"....virtually identical set up as you. I could pull at 2.4 mph steady, uphill 1.8 mph.
enjoy, thanks for posting.
dwight