I’ve had two cartridges retipped with the Paratrace and close friends similarly. Apparently the Paratrace is very (exceedingly) similar to the VdH tip profile. There are two problems I/we have experienced; the first is one of longevity and I would say that the Paratrace wears out more quickly than some others (like those from AT for example). This, I believe, is down to the stock used for grinding the stylus profile rather than the profile itself. The second issue is that it’s not at all kind to surface noise and tends to highlight it above all. The Gyger S tip I last had fitted, although looking frighteningly radical in profile, is far kinder to surface noise but still with excellent top end extension and has already outlived my last two Paratrace stylus’ and with no apparent shortfall in top end performance (yet). When it does die I’m definitely having another fitted!