This is a drop-in replacement for the 2K pot in the buffer, it increases the attenuation range so that you could have a 50% amplitude output. It would be pretty easy to change out the pot, there are two wires going to it. You'll also find a 1K resistor there, you retain the resistor and just drop in this one for the 2K pot.
I'm not willing to take on putting Adrian's TIU fix in, it's a lot of work and it's hard to see how I could charge enough to justify the work. I have a simpler solution, but we haven't proven 100% that it's going to last a long time. Hard to imagine a problem, but I'd like more time in the field before I declare success.
