Yeah, thatīs right. Check out Bolletieri (4.0 player)
I was trying to compare some other systems with the one that USPTA uses.
For instance, in Argentina, you must attend seminars (during the lenght of the course, which is a full year) hosted by Physicians in order to get full knowledge of body functions, biomechanics, musculation.
Also they make constant updates to their Pros by having them attend courses (2 a year), if they fail, they loose certification (Since they make those all over tha country, Pros donīt have to travel)
USPTA and/or PTR should look into this things in order to make certified Pros raise their level, otherwise in a few years now wonīt be suprised if you see someone charging 5 bucks an hour.