Got this done yesterday evening already:
Works "perfectly". As in "as long as you stop wondering about Boss' utter stupidity".
Yeah, would need some cable cleanup - but that's not gonna happen, because I'll tear it apart in the next minutes.
Thing is, as all "inmidst-of-a-song-switching" happens within a single patch (thanks to Boss not allowing me to slap three patches on the three switches), the main point for me to get the GT1kC is rendered moot. The only real patch switching is happening when switching from electric to acoustic, no need for that to be instant. So, I could as well just use the HX Stomp and possibly even get away more comfortably (also see below)
Especially as I stumbled upon another issue (that I wasn't aware of enough while cobbling all of this together). The combination of the very steep angle and very low distance between switches and encoders will make it pretty much impossible to properly switch without touching the encoders here and there. Now, you can lock the encoders, but I don't think it's doing them any good to be stepped on all the time.
This is even getting worse for the upcoming project (which this board was intended to be made for kinda exclusively, so I could leave it on a truck and still have my main board at home), as I will have to wear some disco boots (there's no business like show business... *yuck*).
Just have a look:
Given that these shoes also have pretty high heels, I'm sure you can imagine how much of an ankle twist it'd take to avoid touching the encoders (unless I'd always only hit them with the toe portion, which is barely possible).
So, the combination of the super-limited, super-dumb switching and the actual physical layout of the Core render it pretty much useless.
The HX Stomp wouldn't suffer from that as the encoders are nicely recessed.
Long story made shorter: I will either replace the GT with the Stomp on this board or just grab the big boy and add a little Tonex/Controller/PSU side-car and call it a friggin day. The bad thing being that I'd have to rip it out of my main board (and put it back in) all the time should I need both alternately.
As there's no return window, I will possibly keep re-evaluating the GT1kC for another variation of this setup, adding a Hotone Ampero Control, but atm I'm really fed up from dealing with this thing and worrying about it kinda nonstop since almost two days.
Fwiw, as bad as my experiences have been so far, I may as well even reconsider using the Core on the larger board instead of the big guy, turning it into a loopswitcher-MIDI-controlled setup. Thing is, with some analog pedals in front and the gapless switching of both the GT and the Tonex, it'd be a killer setup. And with the GT sitting a tad more in the back of the board, just responsible for some less relevant switching actions (the main switching would be done with whatever loopswitcher), the physical issues might not be relevant anymore, either.
Still, what a shitty episode, really. From "let me just drop it in and adjust some patches" to full stop nerve wrecking in a matter of minutes - lasting for two days.
TL;DR: F*** you, Boss!
