Yup, he is.

No, the small clone and small stone are entirely different circuits.

Remove the resistor (R6) tie together 2 adjacent pins of the trim pot together (legs 1 & 2 or 2 & 3, doesn’t matter, it’ll just change which direction the trim pot works) stick the single pin in the hole where one of the resistor legs went and the other 2 pins in the other hole.

Hope that makes sense.

You can use 100k, you may find it’s very touchy though… 22/25k (depends if you’re in Europe or US as to which will be the standard value) would probably be better.

From memory as i’ve never done this mod, it increases the gain of the input stage so you may find especially if your pickups are hot that some distortion is introduced in to the signal.

To be honest, the best and only way to properly defeat the small stone volume drop is to build up a small boost circuit and hook it directly between the pedal output and the footswitch… something like an LPB-1 would be fine and can be built on a small piece of vero board quite easily. You can visit either DIYStompboxes.com or Madbeanpedals.com’s forums and there’s a lot of helpful and friendly DIYers who can help guide you through the entire process (my self included) although be warned… DIY can be quite addictive

Where are you located? UK you can use bitsbox.co.uk, US you can smallbearelec.com, Europe Banzaimusic or, you can get an extremely cheap one from Taydaelectronics.com, their quality on a lot of stuff is sub-par but the bourns 3362 trimmers they offer are perfectly okay, shipping can take 2 weeks though as it’s based in Asia.

Pedalparts is good, nah you don’t need to worry about that too much in this case.