From right to left: 500k volume control, with the S-1 switch for series/parallel on both pickups individually. (Pickups are DiMarzio Model J) 250k blend control, ungrounded and works great. 3pdt switch for both pickups series/parallel together, and bypasses the blend control. multi-purpose, 500k tone pot with "no-load" mod. dpdt, on/on/on switch. This moves the tone pot between a .022 cap, a .1 cap, and... a Bill Lawrence Q-filter. Notes: The order of the wiring "under the hood" is different from the logical, user-side order of the knobs and switches. The switch for individual pickup series/parallel is probably the least useful. Parallel mode doesn't seem to change the tone, just reduce the output. Which is occasionally helpful for a quick volume drop. Individual pickups in parallel while both pickups are in series sounds to my ears identical to individual in series, both in parallel (assuming the blend is centered) Everything in series sounds great! Huge, ballsy lower mid and output boost for when you feel like being a bully. Muddy for some things maybe, but cuts through a mix just fine. The Q-filter is actually really cool, especially for slapping. It cuts volume and lower mids while preserving (even accentuating) highs. So slapping doesn't mean you get twice as loud. Granted, that problem can also be fixed with technique, but this opens up other stylistic possibilities. Full disclosure: It all works fantastic and fits in the standard control cavity, but it's a serious rat's nest in there. A better man than I could probably make it pretty.