I had to calm down before replying.
Masters who choose to race in their category in addition to/in place of their age group are not sandbaggers. You are distorting the meaning of the term.
Your ideal world scenario is not going to happen until the sport experiences significant growth in the lower categories which will trickle up. It's not realistic, so please stop using it as a red herring.
Let me spell it out for you. There should be no Cat5's racing with Cat1-4 Masters. Let me repeat for clarification.
There should be no Cat5's racing with Cat1-4 Masters.
Masters should be Cat1-4 only. Anyone that wants to race Masters should do their ten first. That's the way it is out here, and we have a very large, very experienced, and very active Masters contingent to serve as an example to you.