I use heavy substrate and also I have a small heat-shield on the tape to get the 85 for Lactose (Nelson Milksnake). Made sure I could before I put him in there. Same for the Hognose, but she just needs the substrate to get 90.
Sounds like you are asking for trouble to me...
What do you mean by heat shield? if you are reflecting or trapping the flexwatts heat down then you are significantly increasing the chances of heat tape failure and even fire.
Last edited by The Serpent Merchant; 02-20-2012 at 12:35 PM.