If you are monitoring your humidity (and adjusting as necessary) then your sheds should be fine. My boa just shed, over the weekend, and he still had two minor patches of skin left on him (I thought that I was spot on with everything!). My daughter and I got him out and gave him a light massage with a warm, wet towel and all was well (he seemed to like the attention). I could never imagine dropping/putting my snakes in hot water. Stresses me to think of it and we do make mistakes - sometimes the snakes don't help out, do they ever stay still? We're all guilty of inattention, at one time or another. I was lighting our barbecue, years ago (using a fireplace match as the lighter no longer worked) and had just blown it out when my young son grabbed it from me. The hot piece broke off and landed on his face, near his eye but no damage other than a small blister and a sore child. Just a split second of inattention and I paid for it.