This sounds like one of those gamesmanship questions that you ask a match play opponent during a round to get him thinking about something totally random.
I also have no idea and don't really care to check.
A SAM costs about $5k and shows you pretty much everything you could want.
PuttMetrix is much more limited. Which is one of the reasons it costs less.
BTW, @SteveL, we really don't appreciate these subversive types of posts to promote your own product.
So on average with slower greens pros will tend to score lower due to the effect of being able to hold greens better vs. the conditions they typically play (or even more extreme for Majors).