Just wanted to stop by and say "Thanks!"...I was delighted to see that the 16.7.3 Crimsons installed in 14393.5 without difficulty with secure boot on, and that they also continue to run after reboot with secure boot on! Pesky problem--glad to see it's fixed...!
At this point--just trying to decide which RX 480 I want to buy!
Glad to hear that.