A big help for me to get over this was step three of Dizzle. Then I decided to start trying to grab it indy and it helped me go w2w. It basically made me lean over my toes a little when I tried to grab it and next thing I know, I was coming down the other wake. I usually edge in with a medium strong edge and then let off a tiny bit as I go up the wake to stay on axis. That's only because i'm coming in strong. You can come into the wake a lot slower, but keeping that edge will make you go w2w. If you record what you are doing now and play it back, I bet you that you are letting off or slowing down, which is causing you to get only 6" of air.
To be honest as well, I think I was landing W2W TS front rolls before I could do a normal w2w toeside jump. This isn't the case now, but it take disipline to tell yourself to work on TS.