The Pro Pot is modelled on the ICAR pots used in most late '60s Vox wahs. In my opinion it is the best replacement for a Vox or Crybaby. The "sweet spot" is a little wider and it has a nicer feel than some of the other pots on the market.
I recommend Bourns pots for Colorsound wahs. They have a conductive plastic track, so they should last a lot longer than carbon pots.
I always use the 3PDT switch in my own pedals and advise using them where reliabilty is a concern. The cheaper DPDT switches are okay for light use (i.e. at home), but I don't recommend them for pedals that will be used on stage or in a professional environment.
I only supply Dunlop feet, pinion gears and racks. I have no plans to stock HotPotz pots or the Dunlop Fasel inductors.