@CaseySJ first of all, thank you for putting your hard work into this. I'm here because i've needed a Mac for my music studio, primarily for Ableton but wanted to upgrade my skill by learning Logic.
After one semi-succesful attemp of putting together my first Hackintosh on Clover, i've rushed in and followed your lead by buying B550 Vision D, Ryzen 3600 and a used Sapphire RX570. After few glorious days on new & fast build i've started to experience weird hick-ups in performance and eventually it started to freeze on random occasions. Sometimes on full load, sometimes just on idle and even it could work like a charm for few days and finally freeze randomly.
There was also this audio glitch were it could do a weird "ping pong delay" effect for few seconds and that one also could happen few times a day or not for few days. Focusrite 18i20 is the audio interface.
So...after a crash that happened couple days ago, OSX just won't boot. Black screen in half way of loading do OS, trying to boot it with new EFI from you also couldn't do the job. Swapped the cards from Sapphire RX570 to ASUS RX580 helped for three days and now i'm here again with the same problem BUT there's a plot twist. After saying "F**K THIS" i'm going back to my trauma called Windows 10, i've experienced this mad thing were after rebooting from fresh install (after downloading drivers also for GPU) i've couldn't get into OS. Same thing as with OSX, in the middle of booting into OS there was a black screen. BTW. Fans on GPU stopped spinning right after black screen.
and another plot twist: brought the computer back home after many hours of troubleshooting in the studio and i've gave it a last chance. Hooked up it to my home workspace and bam, Windows boots like nothing happened. I've already installed fresh Mojave 10.14.16 (best option for my DAW, plugins etc.) and it works just like that.
Unstable current in electrical socket ?! Bad PSU cable ?! Will find out tomorrow probably or just relay on my poor old MBP 2013 and save pennies on upcoming Mac Mini.
So Casey, does my problems with OSX random freezing rings a bell ? I would like to get more into configurations and knowing what is happening in that EFI you blessed us but the amount of work in my studio doesn't leave me with any more time to learn hard about Opencore etc. I've already failed with properly renaming my components in Opencore after first boot into OSX.
Again, thank you and hope you guys are not destroyed by my noobness and modest english skills
5!