I had better results than that
You've done tests with Redline too? I've done a few UOA with Blackstone and VR1. The last one had the oil slightly thicker than spec after 1100 miles but they thought it was okay for 2000. Here are my results
https://1drv.ms/b/s!AvqKXnLrv2Bt8Mty1kGxtqnlU2roGA.
One of the earlier tests was with straight 50 VR1, the other with 20w50. They were both slightly thinner after 1100 miles, maybe they changed their formula slightly in the intervening years. The recent test was with 20w50.
I typically cruise at 72 mph to 80 mph on the highway, depending on the posted speed. It gets pretty hot here in NC in the summer. I have a 1973 850 without an oil cooler.
I double checked the first UOA was Valvoline Motorcycle 20w50. The second test was with straight 50 VR1. The recent test was with 20w50 VR1. I wrote Valvoline because it seemed odd that the 50 VR1 had less zinc than the 20w50 Motorcycle oil. This is what they said back in 2010:
The Valvoline 4-Stroke Motorcycle Oil is formulated with only approximately 1120 to 1200 ppm of Zinc and only approximately 1000 to 1050 ppm of phosphorus from our plant level. The VR1 Racing Oil products on the other hand, are listed as our highest content ZDDP oils with approximately 1400 ppm of Zinc and approximately 1300 ppm of Phosphorus, so we are concerned that you are getting this increased amount on your analysis.
They wanted batch numbers but those were long gone.