The amount of knobs I’d want on my ideal guitar would be none at all. I only need one pickup; a single coil in the neck position.
I don’t need a tone knob because I leave them on max treble (the one exception being the Hofner Archtop, but that’s not a gigging guitar).
Volume? Don’t need it. The expression pedal on the signal processor is always set to ‘volume’, so I use that. It’s also much easier to control volume that way. Once the soundcheck is done, the max volume doesn’t need altering either.
When I got my latest signal processor (a Line 6 POD HD400), I spent a long while constructing the ‘perfect’ tone for my Soloist XL guitar. It turned out beautifully.
This tone has been copied & adapted to suit other gigging guitars. TBH, the small tweaks are minimal and are mostly just EQ levels.
When I get a new guitar, I select the neck pickup (I don’t use anything else) and turn the tone to full on treble. Then I allocate a new bank for it on the signal processor, I clone the ‘master’ tone patch and tailor all the EQ settings right there. If I get it right, I never touch it again. So depending on what guitar I use, I just select it’s custom tone patch bank.
There are 4 slots in a bank. I only really need one, but I clone it and add some tremolo to suit ‘Mama Told Me Not To Come’ on one. So it’s only used on this song.
For the 650C and the Deuce I have added a second clone. That second clone has a tad more gain (about 6%) and perhaps a smidgeon more treble (3%). This is used as a ‘boost’. The 650C needs this past the 12th fret on solos. The Deuce needs it on a couple of songs that benefit from a little punch at the last bars of some solos.
The 3rd position in the bank is pure guitar with no amp modelling or FX at all. This ultra clean setting is for ska rhythm.
I don’t need the 4th patch slot.
I know what sound I want. (except that Fender one :))
I have the sound I want.
Therefore I don’t need to faff about with it.