Capn Cully, keep in mind that while the back wall is one of the best dives there. If the weather is kicking up too much chop they will not take you there. Folks from out of town little alone divers that may or may not have been in a wetsuit for a while make rough exit difficult so they will not drop you in if the back wall is rough. We got lucky and in 21 days were able to get to dive it 3 times or out of 18 dives the 15 that I did in range of the wall we were able to attempt the dive. But as soon as you get on a boat and or on the phone booking...be sure and voice your request for the back wall of molokini. If you get to dive it, you will not be disappointed. Robinson's appears to have the best result for getting to do the backwall as well. Have fun.