One solution to the Hidden Pro problem would be:
(a) the offering of prize money in all stakes except the Amateur , and
(b) let Pros as well as Amateurs judge.
In the Open , Derby , and Qual only Pros are eligible for the cash, Amateur must settle for just getting the Ribbon
Those who place in the Amateur Stake must again settle for just getting the Ribbon, and the bragging rights of course.
The original question's answer is quite simple,
In addition to the above, Keep the Amateur stake for the handlers not_______ (you fill in the blank)enough to compete with the Pros, but discontinue giving Titles to the Dog (or not if we must)and give them to the Handler.
Think about it,... isn't that the real distinction, since a dog winning enough points to get it's FC gets it's AFC by default, if handled by an Amateur while garnering the points.
For those for whom it is about The Dogs , The Money or Both run the Open, Qual, or the Derby.
For those who are about Themselves run the Amateur.