Well, the boots are just there as generally in 3's you see mostly bruisers. For me, boots are always situational depending on the enemy team, so it is subject to change. Should have put it in this guide aswell, but as for randuins it can also be replaced with Force of Nature. Again, this guide is mainly for the tactic, not a guide on Udyr.

Why are you taking Ninja Tabi? you have a lot of armor items really. You need to either switch your seals for dodge (if you want to utilize Nimbleness ), or to get Mercury's Treads instead, since you are lacking some MR. Also as any other mellee champion, you are very susceptible to CC, so you kinda need tenacity.

Only thing I can come up with is are you last hitting properly? If you are getting atleast 3-4 last hits per wave, and maybe a kill in lane, you should have wriggles fairly quickly. If not, you may need to practice that as it is one of the most important basics of the game. The other thing is are you in a solo or duo lane? When I was doing this I was in a duo so it may explain the level difference, but it shouldn't have been that big of a gap.

I tried it out, with 2 friends as enemys but they did not interrupt me much. But i got wrigglers first at level 7 and that is 3 level over level 4. am i doing it wrong ?

Great tactic, especially for people new to 3v3 ranked to get the hang of things, and counter trynd/xin in 3v3