When I planted my hops last year. I did five rhizomes spaced a couple feet apart. I then ran a network of strings down spaced about a foot apart and had three bines per rhizome. One bine per string.
I don't understand how you would ever need multiple rhizomes per string.
Here's a video I did a couple years ago. You can see how one rhizome had five bines coming out of the ground in just a couple of weeks.