I am looking for opinions on redoing the core classes.  I was thinking about making all core classes only ten levels.  I would have to use my own complete system if I did this though, because I would only want 3-5 level PrC to go with it.  But I was thinking for like magic users, you get o-level spells at lvl one and one new spell level with each level.  I would still keep all the feat and skill systems though.  What do you think?