Please increase EXP and SP winnings!!! Also... increase rank max and physical level (physical level is something that should be able to be superior to 100).
Also I think that you could do something that I don't remember reading anywhere here... Some Classes could onl be used at a determined Physical Level (example: to be a conjurer you should have a Physical Level equal or superior to 5). Of course, you should do that with new classes (like Knight, Muskateer)