Well Emily the BP (aka Little Miss Piggy) has always ate for me every week, shed or no - so I decided to feed Noodle my hognose although she's all dull and has blue eyes. She had a regurge a couple of weeks ago I think it was due to either her rodent was slightly (but only slightly) larger than normal OR was due to her imminent shed - so after the regurge I left her a couple of weeks and tried her on a pinky to get things going again. She ate that very happily last week (she had no blue eyes then). This week she has her blue eyes and very dull skin but I thought I'd offer her another pinky. She seemed interested in it but unable to open her mouth far enough to get it round the pinky so gave up in the end.
So I wonder does the shedding process make their skin around their mouths so tight that they can't open their mouths wide enough? I'm going to wait until she's shed now before offering her anything else.