I bought my G50 in December and it's been unusable for months due to constant dropouts. I replaced the instrument cable and even paid $25 for the local Line 6 tech to tell me nothing is wrong with the unit. The dropout is constantly happening, in and out all the time especially if I move around. I've tried RF1, RF2, every channel, different guitars, different venues and nothing works. I use the original power supply. I gave up. It's been sitting in my room collecting dust for 4 months now. I want to sell it and get a rack mount wireless but not sure I want to deal with a return and an angry customer, even though Line 6 says nothing is wrong with it. Any advice?