Thanks. They do seem to develop pretty fast, molting once a week, but I'm pretty sure my I. oratorias molt at the same pace. But the subadults take like 2-3 weeks to molt to an adult compared to about a month of dealing with sub adults with I. oratoria.
I find it interesting that two of my T. sinensis always molt on the exact same day as each other. They always do this a few days later than one of their siblings, which is a bit ahead of them.