It's the base+dye in C-41 that makes it problematic when doing wet printing. When using a scanner it appears as base fog but otherwise scans fine. The image in the post is as follows:

It's not manipulated in any way and slight post-processing makes it even better. As I mentioned in the blog post I've tried many devs and this is the best I've been able to do with C-41 in B&W chems so far. I've been using it for a while now and I'm very happy with it.