[quote=IncredibleBee]
Hercules would only have one personality we never got to see (fully) due to the Mad Enhancement.Changing his classes around would mostly only affect his equipment and NPs.
[/quote]

In regards to creative output though, that is a significant well you can tap into. 
[quote=Earnest Evans]
That's true. However, I still prefer the idea of making original characters for original RPs. Why restrict yourself from your own creative thought just because you like the way the character looks? A Rider that is like Hercules but allows for more creative thought than Hercules as a Rider.
[/quote]
Sometimes when a character archetype resonates with me I like to play that archetype out and add in small additions of my own ideas. I guess it isn't so much a restriction as it is more of personal preference.