Hey I just saw I didn't answer all of your questions haha.
I stopped cup feeding when I started using crickets that were big enough to get out easily. I think I actually started using a taller cup after a few months (3x taller than the ones in the picture). I would say I cupfed for probably 4 or 5 months. It is really up to you though. I woudl say definitely cup feed for the first 2 months..but after that you should be able to free range, you just have to make sure to monitor how much your cham is eating.
I got Dexter from Ray's Reptilia. It was sort of a special order, but the large picture on their homepage IS Dexter's sire. I keep wondering if Dexter will get more teal to him like his daddy.
I don't think pinheads would chew on your cham but bigger ones definitely would. If you are cup feeding this shouldn't be a problem...but you can always put some lettuce or a small piece of carrot somewhere in the cage. It shouldn't be a problem though as long as the majority of the crix are staying in the cup.
As far as his growth rate...I'll post some pictures I have of him.
In the first picture Dexter is 5 months old and in the second one he is 3 months old. In the 3 month old picture...he was pretty crabby and liked to hiss at me......but that only lasted for a month or two.
My friends and family that didn't get to witness his growth always was suprised how fast they grew.
When I got him and he was 1 month old he was probably 3" total length, and now he is close to 14" total length at almost 1 year old.


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1.0 Sunburst Veiled Chameleon -- Dexter
11.5 months