mnguy55,

Let me clarify the best I can. SM oils with the "star burst" label such as 0W20, 0W30, 10W30 will have far less zinc than 1,000 ppm, somewhere around 800. The heavier oils such as 10W40, 15W40, 5W50, 20W50, and others, are exempt from low levels of zinc and can exceed 800. I stay away from oils with the API Star Burst labels which is a sign that zinc is usually very limited. I also read which oils have a good amount of (at least 1200) zinc/phosphorus ppm so I know what to use and what to stay away from. Read here.
I wish I could explain why VR1 10W30 SM oil can have 1,300 zinc, but I can't. I've never concerned myself with it, so I haven't gone to the trouble to find out, nor have I heard anything about it. I have only focused on Heavy Duty engine oils.

If you want to run VR1, then run it and don't worry about the SM part.