you mostly have the leaks most multitabling regs have. i think things like w$wsf and AF lower the more tables you play.
this is imo a very very good winrate for someone playing 10 tables.
by all means continue playing like this, but just be aware that you will have to change styles to beat midstakes for the same whack.
this may help
http://forumserver.twoplustwo.com/showfl...ue#Post13026431