Durotar Tour - Reverse

I found that spamming all of my vigor at the very start gets you the speed you want (roughly 7 Surge Forwards will clear the first 9 rings). After the 9th ring with the Vigor Orb just before the first stretch of water - this is where you'll stop spamming Vigor and allow you to recharge. I found that using one vigor after every ring through the trees area is sufficient to maintain your speed. When over the water you'll need to use 2 or 3 vigor to keep your speed. At the very last ring use Skyward Ascent to get up the mountain.