I skimmed and didn't read through all the posts, but I can tell you that I spent the last 4 days riding over 400 miles of gravel is the Cherokee, Nantahala, and Pisgah National Forests on my Super Tenere, and not one time did I wish I was able to switch off the ABS. It worked flawlessly in every situation I asked it too. Steep up and down hills, loose gravel, hardpack, mud and wet clay. Don't listen to the BMW crowd. Maybe theirs doesn't work, but Yamaha nailed it.
"Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts" -Mark Twain