I have this new shaft that came with a LePro tip. The tip plays alright (I have always played with layered tips), but the *&%$ing thing mushrooms after 30-60 minutes of play. I have one of those little cylinder gadgets with leather inside; I insert the cue tip and rotate it inside the cylinder - it seems to compress the outside edges of the tip and corrects the mushrooming BUT ONLY FOR A SHORT WHILE. Should I trim the edges with a tip shaper/razor device? What do you do? (I'm too cheap to just put on a layered tip, but I suspect this is my last un-layered tip)