Oooh, okay, okay yes, I'm sorry I misunderstood that. I thought you were telling me to have the 90+ warm side and then have ten degrees lower than what I -already- did. I was very very confused @_@ and not exactly sure you knew what you were talking about either, lol. (would be way too cool)
Also okay, I will ask my vet about this. How could it infect the other snakes? Could they too have a blockage from the yolk/being genetic or are you leaning more towards internal parasites on that one?