[QUOTE] He's gotta go out and buy fluid, he's got to bleed them which is always a pain in the arse. He'll be cleaning the pistons anyway while hes covered in brake fluid and shit.[/QUOTE] Why? You have no idea of his reasons for changing the lines - chances are the calipers are just fine. Why make work? [QUOTE] Just simple things like putting on old clothes and washing up take time too.[/QUOTE] Just simple things like turning a half-hour job into a four-hour one. Fitting new lines and refilling them is a piece of piss; dismantling, overhauling and reassembling the caliper/slave cylinder assemblies is not. [QUOTE] If you're gonna set aside two hours to change hoses you might as well set aside an extra chunk and do the overhaul. ...but I don't really give a toss either way. Free choice innit.[/QUOTE] Like your free choice to accept that you're a know-nothing fuckwit, really.