Question about on the DirtBag Deluxe

[Flyrite]

I just got a pcb from overseas and have all the parts sourced, but I wanted to ask a question about the spdt switch used for the chorus/vibrato. I have built a few pedals to help expedite the learning process but am still unsure of many things, should I go with an on-off-on switch or an on-on? Looking at the schematics I don't think an on-on would work very well, yet I played on a memory man at a local custom guitar shop and seem to remember an on-on spdt switch...maybe someone could shed some light on whether the Madbean pcb is a bit different, maybe a different model of memory man/boy played, or just ineptitude on my part. Ether way much appreciated.

[gtr2]

It's an on-on switch.

Josh

[Flyrite]

Thanks for the info mate.