It seems that I can't have both A and B switches "on" at the same time. I've tried switching polarity but then turning one "on" turns the other "on" which is also not what I want. I want to be able to have them completely independent. So as it is if I click A on, clicking B turns A off then I have to click B again to turn B on. Then clicking A turns B off and requires another click to turn A on. Hoping I am doing something wrong...
http://media.rolandus.com/manuals/FS-6_OM.pdf (http://media.rolandus.com/manuals/FS-6_OM.pdf)
be sure you are using a TRS STEREO Cable from the middle jack on FS-6
(https://www.vguitarforums.com/smf/proxy.php?request=http%3A%2F%2Fwww.snapagogo.com%2Fuploads%2Fsource%2F2372014%2F1409019476_749569180_FS6.PNG&hash=33d9715153058135ba5385c348d0b0fff5a79049)
I have it connected the way the FC-300 manual explains it, which is different than the FS-6 manual (your image).