I have upgraded the stylus that came with this model (OM5) to a OM20 to get a bit more detail and it works fine without any changes to the weight etc but I have thought about going to a OM40 which is as far as I can go on this model, but it costs nearly as much as the deck at £140.00 and my hi-fi shop told me that it would not make that much difference do you think I would hear much difference or is the OM20 good enough for this deck.Thanks.