Doh! Dude, I completely forgot to put up a wall climb video for you. So sorry, man.
I still can't do many pull-ups, but really the trick to it is pushing off the leg that is on the wall and timing the climb-up with the kip.
It really helps to have an overgrip so you can practice without having to slap your hands quickly onto the top, since they would already be completely on the wall in the first place. If not, I can still manage to somewhat get myself over if I have a couple walking steps into the climb. You don't always have to go for that hand-switch technique, that will probably come once you can progress into those weighted pull-ups everyone talks about, since that will help a lot in explosive power (anyone please, correct me if I'm wrong).
It's a strange thing when it comes to climb-ups. I haven't progressed a lot when it comes to deadhang pull-ups, but every time I go into my backyard, whether it be taking out the trash or something like that, I just jump onto my wall, using the overgrip, and pull myself on top of it. Now I can just pop onto the wall in about a second.
But a video might help a lot. You might be able to do a perfect climb-up but your technique may be all wrong. If you can't do that, maybe you could describe in detail what you do technique-wise?