Tom,
I think the chart you're looking for is in this article, the same one from which I gleaned the speed scale:
http://turf.lib.msu.edu/1990s/1997/970312.pdf
Jim:
Yes, it's there. I overlooked it the first time, because I remembered it being more nicely presented before, but here are the numbers:
At a Stimpmeter reading of 6: the ball rolls 6.7 feet on a 1% slope, 7.6 ft @ 2% slope, 8.8 ft @ 3%, 10.5 ft @ 4%, 12.8 ft @ 5% and 16.4 ft @ 6%.
At a Stimpmeter reading of 8.5: 10 ft @ 1%, 12 ft @ 2%, 15.4 ft @ 3%, 22.1 ft @ 4%, 33.9 ft @ 5%, 81.9 ft @ 6%
At a Stimpmeter reading of 11: 13.8 ft @ 1%, 18.2 ft @ 2%, 26.6 ft @ 3%, 51.8 ft @ 4%, and 492 feet @ 5%. No, I didn't forget the decimal point on that last number.
At a Stimpmeter reading of 12.5: 16 @ 1%, 22 @ 2%, 36 @ 3%, 109 @ 4%, and it doesn't stop rolling at 5%.