It is not viable in all cases, heavy warding and high mobility opponenets counter it, and you cannot double jungle every game, and it still has alot of testing to go though, but the testing it has gone through in draft games has yielded a win every time the double jungle udyr xin is done. If it makes sense to double jungle in the game we are queued for, we do; we champ trade and have a 5 man voip; we have 1 person that can solo bot. The key to it working is communication, jungle warding/using oracles, and whatknought. Since you should be getting dragon 3-6 minutes into the game that means your team has 1k extra gold,which makes up for any lost gold via the solo lane bot possibly being zoned.

If your bot lane can handle a 1v2 (so if they are last pick and last pick support, you cannot double jungle safely). You have to first pick 1 of our 2 junglers, probably xin for he seems to be a strong jungler/ganker than udyr early... thus a higher snowball chance. Then you last pick your remaining jungler. The way double jungle works is since your opponent has to ward far more than a regular game if they want any chance of surrvival from ganks. Sightstones being rushed are less reliable since in the coming update sightstones (they now have) are going to go up in price, thus putting it at a 6-8 minute item rather than 4-6 minute item if you buy starting items... Alot of ganks can happen in that timeframe, and one of the two jungles should have a oracles by then, thus making warding a means to feed jungle if they rushed a sightstone, thus putting pressure on all lanes. Since all lanes have to live in fear or spend precious gold on an excess amount of wards yeilds feeding gold to the one with oracles, and going out to ward river results in being out of position...

Your team has to be organized, and most likely a ranked team, for the fact that your double jungling probably would piss some people off to such and extent, they play worse... and them becoming the weakest link (for their runing the teams communication) is likely to yeild a loss. If your lucky enough to pull 3 randoms into a voip with you, you are better off than your opponenet, thus more likely to win.

In short, it is extremely situational and somethign fun to do, it is probably only viable in low-mid elo if your doing it in ranked...

You can't honestly be telling me you find 2 junglers to be viable...? I can't wait 'til Laggermeister gets ahold of this...