Hey all, I've had a zoom bfx 708 for a while, and I use it for headphone practice. Unfortunately, I've been having a problem with the input jack. Sometimes the sound cuts out and i have to jiggle my instrument cable until it starts working again, and then hold it in that position (usually with my foot). Anyone else had this problem with a zoom? I'm suspecting the plastic jack is to blame. Got a fix that's worked for you on your zoom pedal (any model). Mind sharing? Thanks a heap.