COMP Cams 82000B Black Velvet Bottle Bag (Zex)

I bought a used Zex Kit, and the bottle (due for recert in 2 yrs) was scratched up pretty bad from the brackets. I've seen one guy on YouTube put this on the bottle with the heater strapped over it. That just doesn't seem too safe to me. The bottle heater gets pretty darn hot, and I imagine thats like leaving an iron on a velvet shirt. So I put my heater under, so the heat touches the bottle directly.It's really tight and a struggle to slide on, especially with the heater strapped on, but eventually it comes on.Just be gentle when bracing the bottle, so as not to tear or damage the velvet too much.