with all due respect that MBR loop its not the best riding in that area of Dartmoor IMHO. It’s a long ride but tends to avoid/miss all the great stuff in & around Hound Tor/Lustleigh Cleeve & in some places goes the wrong way 😕
If you want a more thrilling, techy & IMHO rewarding ride then you could do no worse than ride the loop that foxyrider has linked to.
Trailmonkey/Shinythings put together a loop with all the best bits in the area & made for a superb ride. You might also want to post up on here for a local to help/guide you around Lustleigh I know Yunki lives in the area & maybe free to go for a ride.
HTH