Ziggy is doing so well, which is no surprise. These are great snakes.
You mentioned that he doesn't seem to like his enclosure lighting. I just wanted to chime in and say that almost none of my snakes like full-brightness light. At one point I was super worried about my green tree python (helicopter parent...) because he was actually going down to the ground and crawling under his substrate, which is wildly abnormal for these arboreal snakes. Turns out the LED in his enclosure was too bright. I've found that this particular snake prefers the very lowest level of UVB and doesn't like any LED light at all - his enclosure is in a corner that has exposure to natural light from two windows, so that's been enough of a day/night cycle for him.
I do like having an LED light in my enclosures, but for some years now I have kept them on dimmers, and I don't put them on full brightness with any of my snakes. Most are in fact fairly dim.
I also use UVB but am super careful to set the enclosure up so that there is only a small 'basking' area with full UVB exposure, and the rest of the enclosure provides a light/shade gradient that ranges from dappled light all the way down to deep shadow so that my snakes can choose to what extent (if any) they want to be in UVB or exposed to the LED light.