Quoted from "MegaMouseSEC;501471"
Infortunately some of those buffs do not stack. Potion speed buffs do not stack at all. It may show them on the buff banner but I ahve done an experiment with a friend and the potions did not stack. I didn't have a chance to check the other buffs so not sure if they stack. If anyone would test them it would be a lot better to let us all know which speed buffs stack and which do not.
As far as running faster than a mounted player I do not think it is possible. There are speed hacks out there that I have recognized and turned in the users. Most people that I ahve caught using them can be found in Tergothen Bay doing the event for the gear there.
Quoted from "MegaMouseSEC;501471"
Infortunately some of those buffs do not stack. Potion speed buffs do not stack at all. It may show them on the buff banner but I ahve done an experiment with a friend and the potions did not stack. I didn't have a chance to check the other buffs so not sure if they stack. If anyone would test them it would be a lot better to let us all know which speed buffs stack and which do not.
I know for a FACT that every buff I listed in my previous post stacks with each other, and I didn't even mention escape artist, which also stacks. I use these buffs in siege war EVERY NIGHT, and get called a hacker for doing so, and then I lol at all the butthurt noobs who dont know how the game works.
As far as running faster than a mounted player I do not think it is possible. There are speed hacks out there that I have recognized and turned in the users. Most people that I ahve caught using them can be found in Tergothen Bay doing the event for the gear there.
Well, just because you "don't think it is possible" doesn't mean they must be using a 3rd party hack program. LOL, I move faster than a mounted player with galloping gale AND a 10% mount speed pot ALL THE TIME, and I don't hack, if you think I do, please report me, so the GMs can get a good laugh. I really hate it when people call HAXXXXXX!!!!!! just because the "hacker" is simply better at RoM than they are.

Quoted from "jtanner28;501500"
Don't forget the Warden/Rogue Elite skill "Walker Spirit". It increases your dodge and speed by 50% and 2.5% per level for 10 seconds. At max level (70) that's a 225% increase on foot!
- S/K VN and GCH tanking complete 
Quoted from "ShanksROM;501474"
I macro sprint+madrush+spellweaver+escape artist but I believe that's only 95%
Quoted from "Kefkai;501597"
Sprint and Madrush cancel each other out, those two in particular don't stack.