I finally got Pro Tools 11.3 working on my iMac so I can gobble up the available RAM with magical sounds. Avid boasts the counter-intuitive exact opposite peripheral/IO settings from Pro Tools 10 for my particular kind of keyboard midi controller. How very chic! Of course, it rendered the Hyper-control features inert. That's the keyboard's hyper-control, not mine. It's still reasonably in tact. Still, I'm able to run either 10 or 11 until such time as Apple forces another o/s upgrade. So, after spending a day job work week on technology upgrades, patches, fixes, and terabytes of data migrations, I will spend the weekend at the rather-be-doing-this-stuff technology apex, prep'ing for some soundtrack work. My version of fun.