They should. Also, Cloak of Elvinkind and Journeyman's treads are not very affordable, and just having hte other three speed items makes you quick, but still slowable, and your favor item keeps you more squishy than others.

I'd like to call out that this isn't inexpensive.  Journeyman's Treads is one of the most expensive purchases at the item shop and Cloak of Elfinkind is an artifact.  You need to sacrifice a ton of health gear to save up all the gold.

I have a friend who plays this build and he sucks ass until roughly level 15.  At that point, he can choose exactly where he wants to be in a moment's notice.

Not a build I recommend except for the late game jollies.

They all stack, yes. I don't believe there's a way to get a base 14 move speed, but you do get it when the Journeyman Treads Proc or you use Wand of Speed.

However, Single Player isn't nearly as tough as Multiplayer. Not always great to try this online as Journeyman Treads are actually fairly expensive, although it does make it extremely hard to kill you that way.

Edit: Forums ate the replies.

Adding up the percentages there (+115%) gives +6.9 speed to a base speed of 6 on Sedna for a total of 12.9.  I'm guessing the proc on Journymen's Tread is what's going on and off, though that should push you over 14.  Maybe 14 is max speed.

EDIT: Weird.... it acted like there were no posts in the thread, but when I posted all the ones that really were there appeared. 0_o

***edit***

redundant as forum didn't display other posts at first (?? new update??)

fire   tb gets a speed boost as well I believe.     

 With fire tb though I found out stacking speed buffs is only good at running away.  If you chase after someone you will automatically default to your targets speed(even if he is snared), if you target him.   some weird feature/bug  that has to do with not being able to attack while moving  while in fire mode

UB's honestly not bad for tanking, though without heal or passive HP regen he really doesn't have many options in terms of staying alive after multiple encounters.

I pretty much never go for the full 14.0 in multiplayer, I mainly posted to get a discussion of speed tactics going.

In real games, I generally go for Boots of Speed, Wand of Speed, and Amulet of Teleportation and that combo works just fine. Though lately I've been replacing the amulet with blood of the fallen and just buying a teleport scroll for the first moments of the game to get the first flag caps, and I think I like that better.

Teleport scroll + flag lock on the +20% experience flag means you get a really powerful first minute or two advantage if you can swing a kill in there (because 2 flags, 1 kill and a creep wave will get you nearly to lvl 4, in addition to depriving your opponents of a flag cap when you move to your second target).

In general, wand and boots of speed (w/ speed skills) are enough to catch any player on the run and allow you to finish them off, or to deprive your enemies of ever killing you until they start effectively working together to chain stun. But you can generally figure out how to avoid that if they start doing it.

Other items I like for both UB and Sedna are Unbreakable boots, Vlemish Helm, Narnoth's Ring, and Nimoth's Chest Armor until I can start affording artifacts (but usually some citadel upgrades to currency, building heal and dmg, and reins are needed more than artifacts, especially if you're using your speed to effectively hold flags)

Well away from anybody? Not really. Regulus's mines stack for a 90% speed decrease, which is more than enough to knock you WAY down. And yeah, they don't last long... but they still last long enough to keep shooting you with maim, which also slows. And even if you get away.... who cares? You just got hit for huge burst damage and dealt no damage because you were running, and with almost 9k dropped on speed items and a speed favor item you probably don't have much more health, so you are out of the lane. Really, the only thing this build is useful for is backdooring, and even then you are so squishy the towers near most portal flags would kill you with a simple TP scroll + stun + spike move combo.

Also, Erebus can easily keep you in range again (Bat Swarm, Mass Charm, walk up and Bite), and while it won't deal a ton of damage, you are as squishy as pudding with so many speed items, so... the odds aren't good.

My post is theorycraft, yet yours basically assumes you can ALWAYS avoid everything? Congratulations, I didn't know you had put your skill points into "inflated ego." Ok, let's see.. Regulus could easily hit you with mines. Why? Because they are hidden. He sets some mines before the fight, and since you tested with UB and Sedna... Boom! Mines hit at melee range! It's easy; you don't have to throw mines like grenades. Also, with some HP, Reg really isn't that squishy anymore. I mean, he is still squishy, but not so much that he can't do something like throw mines in front of him and run past them so you can't chase him down. Also, Erebus is pretty strong 1v1, considering he can escape whenever he wants and the fact he gets tons of HP from bite + vampiric aura and has a great stun move. It's really hard to kill him because he can always escape.

Also, slows have short durations? 10 seconds (for most slows) is more than enough to get away and, for most slows, more than enough to reapply them. It's really pretty simple. Plus, with all this speed item stacking, you wouldn't even have the HP to go toe to toe with a geared up Regulus. No matter how squishy somebody is, if they have some simple things like Unbreakable Boots and a Nimroth's Chestplate, they are going to be less squishy than somebody with no HP items at all (and with how much you drop on speed items, Narmoth's ring is not out of the question.)