Multistep + Workflow Fields not behaving well together

I'm using multistep to split my (huge) node form into steps.

I'm using workflow fields to prevent certain roles from changing the default value of some fields

When i set a field to "view only" for a specific role using workflow fields, then that role sees the field on all steps instead of only the step that it belongs on.

I tested the module grants module for another issue, and while the description of that module implies that it would solve my problem, the problem exists with or without that module enabled.

I don't necessarily think that either module is doing something wrong, just that they're both doing their own thing. Any ideas of where to start unraveling this?

One thought I had was if I could get the step from multistep into my body class array (i'm using a zen clone) then I could just use css to hide the extra fieldsets. but I'm not quite sure where to approch that from either...