Could you give your thoughts on hybrid classes like the slayer leading to assassin and then implement it to your guide? Also i find it to lack suggestions on equipment. There were a few mentioned in this thread but not nearly enough to satisfy me. It would be nice to see how good a character would be on levels 5,10,15,20, or something like that but this being a prestige class would be difficult, I assume.
Also, forgive me any spelling errors because english is not my main language.