My clean sense is at -12
I've made threads about that before, without any solution.
Others have had the same problem too. If I raise the clean sense above -12 it starts clipping red!
CS @ -12 is certainly an extreme setting.
if the INPUT LED hits red now and again, this doesn't mean it's clipping - at all.
in fact disable STACK and record with a CS setting of '0' and unless you can hear clipping going, there is none happening.
despite the actual distance to the strings - the way the whole humbucker is visible in your setup is something I haven't seen before.apparently I need glasses...