I hate to burst your pepperonis, but I feel like your recent revelation may have been pretty well covered on page one of this thread:Check this SH*T out. Let's see how much more gain we can get by going from 3300 to 1k.
With 500k Gain max = 1+ (drive+R9)/(1000) = 506.9 aka 54db Now we are talking!
Increasing the DRIVE pot to A1M will give 6dB more gain, which is not a lot. If you really want to goose it, then reduce R11 & R12, increase C5 & C6. I'd try 680R, 2.4K, 2.2uF and 220nF, respectively for a 14dB boost (with 500K DRIVE pot).