I just googled and found this: http://www.climatedoctors.com/items/...?itemid=429705 Way cheaper than I thought they'd be. I'm gonna save up for a Herpstat. $110. Proportional, though, so it's worth it.

I've a Reptitemp on Flexwatt and I occasionally get some Fluctuation. Nothing dangerous, though, as I check on them several times a day out of boredom. Others do just fine and I'd say don't worry, but I'm looking to move up, myself!