Lol, yeah I've seen my babies do the up the side trick. First time i ever saw one hang though.
And nah, he wasnt avoiding the substrate as he sits on it too. I think it's just with the aspen, its not humid enough in there for him to get a good grip on the glass. With the fresh Reptichips, the humid spikes for a day so he had plenty of moisture on the glass to get a good seal lol.
Now Gina did avoid the Reptichips are first. She was scared of it and wouldnt get off my hand when i tried to put her back lol. I had to put her on top of her warm hide and let her investigate. Now she gives it the seal of approval by sitting half buried under it with just her little head poking out lol.