So i have a 5f1 clone and the biggest problem i have with it is headroom. I tought about doing a NFB mod by adding a potentiometer. My Question is can i achive 100% negative feedback by removing the 22k and placing a jumper wire insted of it. Will that damage the amp? does it need to have some resistance. I saw uncledougs video about NFB and he said that you dont want too much negative feedback (why is that?). He did it in a way by adding a 10k Resistor in series with 50k pot so that when you go all the way to the left you still have 10k of resistance. I saw some guys doing it only by adding 100k potentiometer so that all the way to the left is 0ohms(100% NFB) and all the way to the right 100kohms (0% NFB). Will 0ohms in the place of 22k damage the amp, will i get more headroom, what values to use. P.S. It has a 8" eminence speaker and i know replacing it with a 12" will get me more headroom but i still want this option.