Cheers Kovalchuk & Gosinger . I'm guessing cheap isn't the way forward when it comes to conversions . Kovalchuk , surely the size issue could apply to any online or 2nd hand purchase ? I can only base my purchase on what size appears on the advert and is shown on the photos . Gosinger , I'm surprised to hear that the one ups are that bad , whilst I wasn't expecting them to be world beaters I'd have thought that the Tuuk/Bauer quality would still be pretty decent , ah well back to the drawing board . I wonder if my old quads will take a modern inline chassis :)