Had my first day with the R50. Used it for about 5 hours testing play vs. GSPro. My primary issue is HTH doesn't appear to actually change the putting speed based on green stimp setting. I tried various values between 9 and 12 and all are very slow, maybe 8 stimp equivalent.
I switched over to GSPro, which I think takes raw data from the R50 and does its own computations and it is much more realistic at different green speeds.
I don't know if this is a bug in HTH or if it doesn't allow you to change stimp during a round, but it would be nice to know how to actually change green speeds.