If you think any pro plays with the racket they advertise, you know nothing about the stuff.
There are many...just customized, not stock. I can even name two in the top 150 that use stock rackets.
nblade for me (with lead tape up the ass) switched from the ps85 to the iPrestige. My competitive days are over what with college and all but I've got a buddy under Wilson who hooks me up for less than $30 USD a pop