i'm not clear if the 30-day limit for pitchers is per level of the assignment, or if it's from the date of the initial assignment. dylan file was transferred to higher level clubs after his rehab assignment started 9 july with acl brewers blue. on 17 july, the rehab was transferred to class high-a wisconsin. on 27 july, the rehab was transferred to class aaa nashville. assuming that file wasn't shut down at all during this span, i would assume that the 30-day clock started ticking 9 july, not 27 july.