I descended the majority of the Howker Ridge Trail 10 days ago on a King Ravine/Howker loop from Appalachia. From the Madison summit, however, I took the Watson Path down to Pine Link, which I then took .7 mile NE to its junction with Howker, below the topmost "Howk." That means I missed the top, most exposed section ot the HR Tr., but I don't believe it is any rougher or more exposed than that section of Watson Path.
For the first .3 mile from that junction, HR and Pine Link ran down together, and that section had rough footing - narrow, slippery rocks and rooty. My only real slip of the day came there and I whacked an elbow. After the Pine Link peeled off to the NE, the HR Tr. improved, I thought. There was no more than 300 feet total elevation gain, as I recall, from the cols between the lower Howks.
The views for me weren't quite what I'd expected looking down from the Madison summit. The Howks on my stretch were more wooded than they appear from the top, which would be a good thing in inclement weather. That top stretch, of course, would have better views and more exposure.
I took the Sylvan Way and then Brookbank (Gordon Fall) back to Appalachia, but if I'd had more time I'd have preferred the Kelton Crag/Dome Rock route - a little longer but more scenic.
I had a nice day and a daypack. Overall, I thought Howker Ridge was a somewhat longer but pleasant and relatively little-traveled alternate route to Madison.