Hello Gang, I've owned a MK Dragonfly 5 ABG for a couple of months. It has been a joy. I find myself playing much more with an accoustic sitting in the corner. The only downer is the thing howls like a rhino in season when it's plugged in!! At anything over 25% on the Fishman preamp it feeds back. I have seen Accoustic git players use a hard rubber piece that fits in the soundhole to control feedback. I went to GC yesterday to try and find one (anyone want to guess how much fun that was?). Does anybody have a company name or a link to help out a brother? Thanks in advance, Fo'