Hello, I am building a Bullrush overdrive and I seem to be getting oscillation that only goes away when the gain or level are less than 11 o clock. I changed the routing of the input wire to footswitch and that seemed to help but its still a problem. I have built more than my share of overdrive pedals from this site and have never experienced this. I will point out that nderneath the oscillation, I can hear some good tone potential so I know I'm not too far away from where I want to be. Here is a pic if that helps. Thanks in advance!