We massively upgraded the healing simulations today. We're testing it out over the next couple weeks and I'm working on a new mythic+ script.
I'll try to get something to use for mythic+ on the site early next week.
We're trying to figure out exactly what ought to be simulated for mythic+... like, what's the most useful situation to simulator and therefor gear for? One really hard pull? A short boss? I'm going to go through some logs and see if I can find something interesting to base the new script off of.