The main reason I wouldn’t want a club recommendation (apart from the legal thing) is that I very often don’t use the club that the straight yardage would want.
The unit might think I hit a 7 iron 140yds because it’s my average, but half of those might be punch shots or (heaven forbid) miss hits, so if I have 140 I wouldn’t want it telling me to use a 7 iron because if I swing normally it would go too far.
