Hi all, would really appreciate if you good people took a look at my schematic for a build I'm planning. I want a hot rodded, old school early 50's amp, all octal (6SJ7+6SL7 with the ability to try the 6SK7 in place of the pentode to explore non-linearity). When cranked however, I'm hoping for some Marshall-esque tones (thus the .68 uF cap in V2). Also, a grid leak/cathode bias switch in the input stage, I'd like to see what difference it makes. Do you see any mistakes in the drawing? Anything you would have done differently? Thanks!