There's also the case of whether you should do this though. Unless you've already got characters of that class on other servers at high level. Skipping straight to level 70 is definitely... recognizable.. by other players, since levelling your class from 1 teaches you how to best play your class, you gain practice. No matter how good a player of games you are, jumping into a class at 70 with no previous experience playing it, can be a bit jarring, especially when joining dungeons with other players, if you're not using your skills right they will notice and wonder why.