I didn't mean that in a way that they're not reputable, but that there are more options available. Personally, I don't know anything about this breeder...
This is what I do as well. It works great! Also if you get it from a few different trees you can give the Cham some different surfaces and textures to walk on.
I would definitely look into getting a T5 soon. I don’t have any experience with T8s. If you have it on a timer where it’s plugged in, a lot of them just cut the power to them, which means it wouldn’t be able to stay on. Maybe check your timers?
My chameleon has only shed once since I’ve had him (about a month). It took him about 6-8 hours to finish almost all of it and then a few more days to get little pieces off. He’s only five months old so it was pretty fast compared to adults.