So I've created an EFI, w2g, w10pro SSD (Samsung T5) which boots just fine from my Windows machines and my 2015 MBP13r. My new iMac Pro sees the drive at boot but fails to boot with a bless error. Ironic that the first Mac with a high end GPU cannot boot from a Windows to Go drive. Any ideas? Created the drive with a Parallels 13, W10 VM using WinToUSB free.