So this week, I managed to finish up both my legendary ring on Joar as well as get my 12th character to level 100. I will admit, I must have taken a bit of time away from some of the major news sites, because (and I'm not going to spoil it for those of you still working on it) but the quest chain that leads up to receiving the ring was actually a surprise for me.
So now I have my styling new legendary ring, but I'm pretty tired of HFC at the moment, so not sure when it's going to actually get used.
In leveling news, pretty much as soon as that was done, I fired up my last Horde class sitting at 90 and drove for 100 to see what impact flying would have on his leveling speed. The sad answer to that question is essentially none.
He came out exactly in the range as the previous sets of characters that I'd leveled with both full heirlooms and garrison xp potions.
So here is my theory on this one. The one difference that I did notice is that taking the exact same approach, I ran out of rested xp much faster than I had on the previous characters. On the others, I'd run out about half way between 99 and 100. On this particular run, I ran out towards the end of 97. In theory it's because I'm getting to and killing things much faster using it up more quickly. That's my theory anyway.
I've got 4 alliance toons up next, so we'll see if we get any different results out of those.