I am at a loss here. I have tried the suggestions here and still have some challenges getting this to boot from the drive. I did a complete install, ran Muiltibeast, the did what Going Bald suggested by copying the EFI folder to my desktop from the USB and used EFI Mounter V3 from this site to mount my HDD EFI and replced all the files there with the EFI folder created from the install from the USB.
I took the USB out and rebooted my computer and the Clover default screen came up with an option to boot Sierra from the HDD. So I did this and the Apple logo appears with the status bar. The status bar goes fairly fast until then end, then slows and is stuck with a completed status bar but no OS. Anyone have any suggestions?
MOBO Z270XP-SLI
RAM 32 Gig Crucial
On board Graphics
Samsung 500Gig SSD