Makes sense. It's a bummer, but I get the difficulty of having collision between clothing and really it's pretty amazing what's available so I can't complain. I'll just have to keep tweaking things and find combinations that work.
I'm having significant issues with this as well. I'm seeing it happen a lot with standard models (no significant modifications) where clothes show through other clothes like underwear showing through shorts or a skirt. I've read the guide and I've been able to make it better by tweaking...