I tried doing this about a week and half ago, feed during the shed. My BP struck, but missed, then gave up. The interest was there but it didn't eat. Someone here mentioned something to me that I thought was important, so I will pass it along. Shedding and eating both require hydration. So even though your humidity is up during the shed, that's just enough to ensure a clean shed. Adding digestion into the mix means the snake will require addition water usage, so it can be a strain on their system, essentially. That said, I have decided not to try to feed during shed anymore, but just adjust the feeding schedule to the day I find that the shed is complete.
This worked fine last time, two days after the failed feed, I found the complete shed, and went ahead and fed that night, and just went from there on a 5 day rotation. Aside from this one incidence, my BP has not missed a meal yet.