OK, now I am thinking about a 2-pole, 6 position switch for gain control. A fixed 33k resistor, then varying values starting at the 33k for the first setting and ending with a 'nuke' setting switching in a 50uf bypass cap (with a 47k resistor across the last switch to prevent pops), the bypass effectively erasing the feedback loop. Then I will go with a 3 way pad on a 2 pole, 4 way switch, -10db, -20db, and -30db settings. SO, my new questions are...
1. Will: 2x 470R with 220R across them, then add 2x 1k in series with 470R, and then 2x 1k5 in series with 470R and 1k work as roughly -10db, -20db, and -30db pads respectively?
I'm trying to figure out the right approximate values and how to actually wire the 4 way switch and this is what I came up with.
2. What values should I use for the 4 middle settings on the 6-way gain switch for measured gain steps?
I'm not even sure what max value to use here for setting 5, and I'd like setting 3 to be near the stock value. I'm thinking 33k for position 1, 10k in series with the 33k for position 2, then 22k in series with 33k and 10k for position 3, then 47k in series with 33k, 10k, and 22k for position 4, 100k in series with 33k, 10k, 22k, and 47k (with a 47k resistor going from the cathode to the + of a 50uf bypass cap) for position 5, and finally another 100k in series and a 50uf bypass cap switched in across a 47k resistor for position 6