Thought so, had my Proflex 856 set up like that in about 97, it's sat back in my garage at the moment, belongs to a mate now after being stolen and recovered, (although buying it back from some scumbag doesn't really constitute a good recovery!!!!)still has the dart but the smoke is long gone, replaced by a narrower Michelin, patience and a lot of time on the laptop have turned up some new black smoke/darts from Rose bikes recently (bargain at just over a fiver each) and a set of skinwall re-issue folding smoke/dart from Germany at about £25 each so they do turn up at non exhorbitant prices now and then........