The first problem is that the ball detection system is a lot more finicky than it was to find the ball with 3.7. Sometimes it does not see the ball and other times it takes a long time to finally detect the ball and give the green light. I consider this a big downgrade from 3.5 and needs to be fixed.
The second problem is that there is a bug in the club and ball speed software built into the R50. Now using practice on the R50 it is showing my club speed at 120-140mph. I wish! The reality is that it is between 65-80mph. GS Pro gives me the right numbers but 3.7 on the R50 is giving these bizarre ball and club speeds. The actual carry and distance corresponds to my actual club speeds using the Garmin software-just the ball and club speeds are off. Almost like there is a bug multiplying the readings by two.
Also the too fast mulligan choice on Home Tee Hero remains.