Rebote 2.5 Delay - Switch Middle Position

[mwynwood]

Hi all - a while ago I made a Rebote 2.5 from this layout, and it works great.
I was messing around with it today, and I discovered something cool...

When you hold the "Infinite" switch kinda halfway between OFF and ON, it seems to reset the delay, killing any noise.

This is awesome, so I'm wondering why this is happening, and also how might I rig it up with a 3 way switch to be a permanent feature?
Thanks 

[slacker]

What the infinite switch does is choose between two different values for the red feedback resistor on the tonepad schematic. Off is 15k On is 11k or what ever value you used, if you hold the switch half way then neither resistor will be selected breaking the connection so you get no feedback and no repeats. It's the same as turning the repeats pot all the way down.
If you replace the infinite switch with a DPDT On-Off-On switch the middle position will do the same thing.