I have a 2008 Centurion Lighting C4 with both side and center ballast and this is the first year switching from Wakeboard to Wake Surfing. Except for my lightweight daughter, none of the rest of us can drop the rope. We just slide backwards through the wake. I'm thinking the wake is not big enough or steep enough, but it could also just be not knowing what we are doing. Any recommendations of wake shapers, or suggestions on what we are doing wrong?