instead of trying to do a huge, deep edge, take a nice solid cut at the wake and about 3 feet from the wake, roll off the edge and bend your knees so you are really low to the water. right when you hit the base of the wake, pull the rope into your hips rather hard. this pull will put a lot more tension on the line and give the board more speed as you hit the wake. as you hit the wake, you almost want to do a bunny hop, the quick straitening of the legs kind of deal. you should be able to get plenty of air. this method doesn't give quite as much height or distance as described earlier, but it gives you a nice stable base to learn off of.