Hey guys. I just bought an OTS 50 HRM and was delighted with the clean channel. However the OD channel was sort of a let down. It’s rather flubby and harsh with too much high end. I tried adjusting the HRM trim pots and got nowhere. I disconnected the HRM circuit; and while it helped it still didn’t sound what I had expected. I do not have a lator of any sort which I’ve heard helps. But I just read here that having the heat wires in the air will fix this issue. I’m rather confused as to what the mechanism of action is when having the heat wires in the air. If anybody else here has any suggestions please help. I’d hate to be out a big chunk of money on an amp.