Yeah, I was examining my 105Q a few weeks ago and it seams it really isn't switchless (go figure, it has to turn on somehow right?). Turns out there is a tiny momentary switch on the heel that gets pressed by a little rubber knubby thing. So the switch is connected when the heel is down making it in bypass mode, then when you start moving it, the switch is released and that circuit is left open so the effect turns on.
So to change it to a stomp-style switch on the toe, all you have to do is get a SPST switch and attach a pole in place of the poles on the momentary switch. I don't know about everyone else's 105Q, but mine even has the hole drilled out for me... it is filled in with some black plastic piece.
you can even make it true bypass with a 3PDT, one pole is used to turn the effect on/off, then the other two used for the TB. or you could make it TB with a DPDT then make it so the effect is always on
Then you can get rid of the pieces that make the toe automatically go up as well. How that works is there is just a piece of curved metal going from the heel to halfway up the toe, you can take it out with a socket wrench and a screwdriver.
so yeah, not too complicated, and no drilling! If I didn't love the "switchless" feature, I would do it myself!
