YES!
Yes!
yes.... and quite likely, yes.
People who say they "never use the tone control" - well besides having to run over to the amp all the time and/or having to build some sort of EQ'd "presets" into a pedalboard... well if you play a guitar that always has the tone controls on 10, so you build a guitar with no tone control - it can be a really zoinked build. EVERYTHING the signal runs
through matters. I don't think caps matter, certainly not as much as some of the more insanely-effusive descriptions found on Moronspeak.com. The caps are like... the plug in a sink, the signal runs
to them but not
through them. And the differences that people hear are because two different brands of a .022 caliber cap are actually not both perfectly "22s" - call it the size of the plug in the drain.
But all the wiring, the pots, which parts of the circuitry is emboldened* or disconnected by the switching, yup. I goofed over this one a few times before I figured it out. One possible, and certainly elegant, solution is through the use of internal trimpots. They're about the size of a sugar cube, and can only be adjusted with a screwdriver. But if a guitar is just always, always too bright no matter what you do with the existing controls and the amp, a trimpot will cure it. They're really cheap too.
Here they are in the Electrical aisle, not the Guitar Part aisle (maybe
why they're cheap? :evil4

:
http://www.ebay.com/sch/i.html?_odkw=&_osacat=58164&_trksid=p2045573.m570.l1313.TR0.TRC0.Xtrimpot&_nkw=trimpot&_sacat=58164&_from=R40
I have occasionally seen guitars with little holes in the pickguard so you can stick a little screwdriver in there to change the (stably-mounted) trimpot value. Which seems dim, what you apparently need there is a TONE CONTROL.... :dontknow:
*(do you know how LONG I've been waiting for a good use of that word?) :hello2: