Thanks guys.
I suppose technically the second version I posted could give a bit more switch pop, since there are two switches running in series when you go into passive mode, but it really shouldn't matter.
This is what I'm using all the time... Does the other version have any advantage to this? for example, less popping noise when switching?
On my amp this has almost no noise when swiching (maybe sometimes the first switch makes noise, but after that it's virtually silent), but I found that some amplifiers behave other than that..
I suppose technically the second version I posted could give a bit more switch pop, since there are two switches running in series when you go into passive mode, but it really shouldn't matter.