£63.99 but "item discontinued". TBH I'm not convinced by the look of that "parallel push" system. It may be handy for keeping the pads aligned but it also seems to present more opportunities for grit and brake much to get into bearings and gum everything up. Still, I've never tried it in practice - if you find it works well, that's good.
I have, and that that's exactly why I suggested them
(Hmm, they must have sold the last of those - don't even appear on the website now..)
I put a pair on my Stumpjumper circa '97/'98, then rode that as my main bike (retiring my '90 cracknfail) - commuting, general mtbing, trailquesting, in all sorts of shitty conditions, up to and including a trip to the Alps in '02, and a little while after (before picking up a s/h P7 cheapish..) In fact the few people on the Alps trip that weren't having trouble with brake fade/arm pump were the handful of us xc-jeyboys with Vs.
They're not intended to be serviceable, but there's a locknut you can undo (but not remove) which slackens them off to rinse out any grit - a bit of a PITA but it's impossible, I've done it a few times, being a serial cleaner/servicer/tinkerer - there's some captive ball bearings in the main pivot housing.