Fast charge is kernel specific. So if your kernel doesn't support fast charge then the toggle is useless.
Did you try to set the toggles at a proper dpi then set it to 160dpi?
My post was misleading, my apologies. The problem is that I don't even see the AOKP toggles at all at 160dpi, not that they show up but don't function. I only see just the default JB "toggles" that the tray has in tablet mode. Did not know fast charge is kernel specific, so thanks for that bit.
My order of set up was:
1. Flash ROM, keep default 213 dpi.
2. Customize AOKP toggles and other settings.
3. Change dpi to 160, subsequently losing AOKP toggles.
4. Flash motley kernel.
I'm mostly concerned about getting the toggles back and full ROM functionality while keeping 160 dpi/tablet mode, and then I can decide kernel choice vs. fast charge mode. Also, I'm on jb-build-1, and not a more recently nightly. Maybe it's a version problem?