I have a questions about tuning an MVP that I am having trouble with. It seems that I only get the sound I want out of it when the cork is wet. Once it dries, its a bit dull sounding and loses its rasp and ability to ring. The cork also seems as though it slides in a bit easier than it does in my RNT Original and Short Barrel. Any ideas on how to correct this? I figured that I may have to send it in to the factory to either be adjusted or replaced. Any fixes in the mean time? Since we are about to get some awesome weather with 20+ north winds and freezing temps here pretty soon. I figured RNT won't have it back to me in time and I hate to be without it. Also forgot to mention that I started using Echo cork and my own cut reeds from River Mallard (if that matters much). Thanks for you help!