Wow! Merry Christmas to everyone.
This is awesome. Thank you for taking the time to write this. Excellent. And I agree with you on the Line Level Potentiometer. It would be good if it offered more resistance.
The potentiometer physical resistance issue has to do with a the size of the pot and the limited availability of pots that have a DPDT switch attached to them. If I could find (or anyone else can) a physically larger pot with a DPDT switch attached to it I would go for that. All that is being currently manufactured are of the small size, hence the lack of resistance.
The best pot builders I am aware of are Bourns and Alpha. I have tried them both, and currently use a pot that comes from Alpha. There is nobody making a large pot with a DPDT switch on it that I know of. . . Alas.
There is much going on right now for little Jule Amps and Monique. A swirl of activity, all of it good, all of it will make music, but quite a swirl. I had no idea how much interest there was in this little amplifier I am adding to the feature set of Monique. I would like to take credit for prescience, to say I knew it would work this well, but I respect this audience more than that. Good people have guided me and paved the way.

Add to that the "interesting" complexity of importing something this powerful and technically complex from across the Atlantic and I can say it has been a learning experience, and a swirl.
I am very grateful.
Thank you Dave.