I'm still running Sierra. My Bootchamp works perfectly to my Windows 10 UEFI drive. My "restart into MacOS" works perfectly as well. SIP is disabled of course. Running a GTX 1070. However....I'm still running Sierra. Is now a good time to go through the effort to upgrade to High Sierra or Mojave for a 5,1? Are all the kinks worked out? Anyone else happy with this setup?