I am experimenting with some buffers, the Cornish and Stupidly Awesome Buffer mainly on my pedalboard and I think that it's a nice idea a input impedance control for set de hi end.
I put the buffer the first pedal on my chain but some many times it's too sharp for my taste.
With the Stupidly Awesome Buffer can I replace the first 2M2 input resistor with a 1M pot?
makes sense?
Also, I found the tube buffer Sarno Steel Guitar Box, that has a Vari-Z control: