I can do it 70% of the time. I am a regular surfer, so modify mirror image for goofy start.
1 - I begin on the port side of the swim step, maybe one foot closer to port than the center of the step
2 - Board 3" from hull at tip of board, fins pointed straight back.
3 - All weight on my front (left) foot to hold board in position. My left foot is a little forward of my normal surfing position.
4 - Rope in front of me, stretching BEHIND me
5 - Driver puts boat in gear, letting rope stretch back into wake zone
6 - Driver MUST go straight during start
7 - Driver accelerates, like a normal wakesurf pickup
8 - I have a "close" rope knot in my left hand, and another knot 4-5 feet further down the rope in my right hand. I am using the close knot to help balance on the step
9 - As soon as the boat BEGINS to accelerate, I weight my back (right) foot, which is in the normal rear surf position
10- I put 80% of my weight on the back foot, still holding on with my left hand.
11- I quickly let go with my left hand, and bring it together with my right hand on the "further down" knot. This moves me a few feet behind the boat.
12- I get stable behind the boat as the wake forms, and move "left" into the port wave. I continue with more weight on the back foot than on the front, maybe 60/40.
13- I play out the rope a little at a time to get back to the handle
14- I move my front foot to the appropriate spot for surfing
15- I redistribute my weight appropriate for surfing
1 - Do not Wakesurf behind an outboard or I/O, inboards only !!
2 - Do not coil rope around any part of your body or hands, if you fall, you can do EXTREME damage to your arm, hand, ....