In my dojo as in a lot of styles the basic entry is an irimi or irmi tenkan with an atemi to the head of uke while the other hand deflect uke's attacking arm.
This is all well and good, except that, just like other interior entry you always risk running into uke's free hand. Anyone with a good martial foundation will keep the other hand in their front arc ready to protect the face or to counter attack. And the free back leg...
Then I saw this one:http://www.youtube.com/watch?v=p_-EV00Ih70
I really like this exterior entry. Keep you away from both the free arm and leg of uke while positioning you behind and into uke's guard. However I've never seen this before and the vid was too fast for me. The circular downward cut of yokomen is too wide to irimi outside and it's hard to deflect uke's right arm with your left arm like in this vid.
Anyone familiar with an exterior entry for yokomen? Vids appreciated!