You'll need two jumpers to bypass the switch. Here's a pic of my version, I also bypassed the switch and added true bypass. Maybe that helps...Am I right in thinking that the switch is two position, so either both filters are engaged or both are bypassed? I'm pretty sure this has been answered I just want to be sure Im understanding it correctly. If so, and I were to not include the switch, I would just have to put three jumpers in instead of the switch?
And does anyone have the BOM? The link on page one seems to be a dead end.