Just to add my 2 cents... At least a few of the BIG breeders recommend temps lower than we recommend here.

If your snake has been doing well for EIGHT YEARS, and only became restless when you changed the heat source and temps, thats telling you something. She is accustomed to the environment she has been in for eight years, and changing it up now has made her restless. In fact, I would go so far to say that trying to elevate temps to the 92/82 range COULD actually be unhealthy for YOUR snake.

I'd say put back like it was. But you might want to do it somewhat gradually. Don't want a sudden drop in temps.

Steve