I'm not sure I'm understanding your question correctly but your calcium supplement should be without D3. I like the Reptical without D3 for every feeding and RepashyLoD twice a month. You can buy feeder cups online or make them from large deli cups.
As already mentioned, it sounds like he is just exploring his new surroundings. You have a nice amount of branches but I think I would add some smaller diameter ones that he can grasp easier.
I feel that article is still pretty accurate today. I've had wc imports from Kenya, Cameroon and Madagascar. My first was a Trioceros jacksonii xantholophus from Kenya that I was able to keep for close to 5yrs. My second was a Trioceros Cristatus from Cameroon that I still have today at 5yrs...
I agree, I've gotten to know some amazing people in the community. I may have been in some of the same livestreams of Bill's. I hope you enjoy the Chameleon Enthusiast equally as much as the forums.
Many have started out on the wrong foot, myself included. As part of the admin team with Bill Strand in The Chameleon Enthusiast we don't tolerate bashing like some other groups. Your in good hands here to ask questions and learn 👍