I'm about to perform the flip and chop, but I want to get new time trial levers too. Anyway, where do the cables run--if I got something like this http://www.chucksbikes.com/store/bk010.htm--do they go inside the handlebars, or does it go along the handlebars but is covered up by the bar tape?

Thanks! And if the cables do go through the tube, because I'm flipping and chopping, do I drill a hole to let the cable out somewhere near the fork?