Been playing around with capacitor values for my recent P-Bass build and liked what I heard so much, I decided to install a mini switch (ON-ON-ON) that let's me choose between three caps. I had been curious about the Stellartone ToneStyler product and thought I'd check out how different cap values would change things. The result is the unit in the pictures which allows for switching between .047mF (traditional P-Bass value), .022mF (1/2 value) and .0047mF (1/10 value) caps. After trying about a dozen values, for my money these three values open up a world of possibilities. And, b/c the switch only changes the cap value used on the traditional tone pot, you still have a full tone control sweep across the chosen cap. This is different than the ToneStyler design which, if I understand correctly, gives you 16 fixed presets - i.e. the traditional variable tone pot is replaced with a 16-position switch that chooses between different fixed cap/resistance values. The home-brew switch here only has 3 cap values, but you retain the traditional ability to adjust the mix between the wet and dry signals. Two different approaches, depends on what you're looking for - YMMV. I'll try to get some sounds samples up this weekend, but in a nutshell, the .0047 cap produces this amazing open, woody tone that simply isn't available from the standard .047 cap. The .022 is a nice balance between the .047 and .0047 results - it basically allows you to dial some of that open woody-ness into the traditional .047 sound. It also allows for a unique and expanded range of more mid-focused sounds. Overall, the switch give a broad new palette to choose from. Total cost... like $7.50. Well worth a try if you can do the work. Oh yeah, for the switch, everyone and their brother wants to charge $12-$18 for an ON-ON-ON DPDT mini-switch, but I found one here for $3.75.