Did I wire this efx loop right?

[frank57]

I wired it like this but I can't remember if the two jacks had to be connected somehow.

[sluckey]

Add the violet wire if you want signal to pass thru if nothing is plugged into the jacks.

[frank57]

Does the purple wire make the preamp signal pass through without activating the jacks?

[sluckey]

I would probably use a yellow wire.

[frank57]

What about this idea? Is this better or worse?

[sluckey]

Or maybe this?