[Cazador]

Sounds like a good protocol, Roy. It's not necessary, but for about $20, you could buy a digital thermometer with remote sensor and high/low temperature memory. Some also come with humidity sensors, but they're a bit more expensive. I put the remote sensor (without humidity gauge) leaning against the outside of a stack of hibernacula, and I put the receiver, which also reads the temperature at its location, in a terrarium on my desk at home. Then I can easily see the temp in the terrarium in front of me and at the hibernacula in the other room.

The other thing I like to do is to weigh (and measure) the snakes before putting them down for brumation. If I get concerned about any snake, I can re-weigh them and get a more accurate index of how they're doing. The measuring bit is just for my records. It doesn't help with brumation.

Jasuncle,
Brumation isn't critical, but it sure increases the likelihood of getting your snake pregnant. If you've recently fed her, don't put her back into a cold area right away. Let her digest her food and pass her waste.

You can boost your odds of your female delivering healthy offspring by giving her plenty of privacy/hiding spots, and feeding her small but frequent meals. I'm also an advocate of giving multivitamins including, but not limited to, calcium powder and folic acid. I'm sure the parturition discussions will intensify as spring approaches.
Rick