I did the Cap 73 snip, the 1nf mod to Cap 72. I did the Negative feedback loop resistor (R104) to 100K. The R23 to 1.5K. These mods I kept as the amp turned into a killer Plexi-JCM800 hybrid. I did the C48 470PF and jumpered a 470PF cap over R23 also. I didn't keep the C48 and R23+c mod as the amp b...