I've heard a lot of mixed messages about dropping bp enclosure temperatures at night. Some websites say that it isn't worth the risk of RI's, but other sites say it allows the snakes to better adjust to daytime/nighttime schedules and that a drop of only a couple degrees (say 90 to 86) wouldn't pose much threat.
If the information helps at all, I have a 4-tub adult rack with one adult (700g), one larger juvie (250g), and a little guy (around 150g).

Any opinions/experiences?