So I built the Causality4. It's a nice Phaser too.
From this thread
http://www.diystompboxes.com/smfforum/index.php?topic=80456.0
(feel free to remove the link Mods if it's not welcome)
schematic on page 6
I also built the additional stages mod on the same perfboard.
Heres my question
Can I make the additional stages switchable and if so how please?
additional stages mod on page 12
Thanks
Rich
Of course you can, you can use the same switching as the pedal bypass switch so you're just true bypassing the added circuit board.