Looking for a stan program critique

Thank you both! I’d say so far the parameter centering and choosing priors was the hardest part for me to figure out.

This final comment is really interesting: Standardizing predictors and outputs in a hierarchical model

Okay so my understanding is that my original model with the non-centered parameters given no divergences would yield appropriate inference as well? The main difference being computational time?

I ask because when I switched to centered I got a cryptic communication error with the sockets. Plan to debug next week. It smells like I blew out memory or something (need to check). If could trust the unscaled version I’d have a nice fallback.