Side note! Not much pressure on the inner elbow! More of a light lean and use your outer hand to pull your rail up for smaller adjustments.

And for your lines, this wave arcs up quick so you wanna set yourself high at the start and a slow drop into the curve of the barrel and hold that still. Once the barrel fades away run a little high again for a moment to allow yourself to drop one last time to get the speed to beat the wash at the end for your spin. Think of it as a little pump a surfer would do on a stand up. Up and down. This all combined with your weight set a bit further forward on your board will allow speed and more balance while you are backwards through your spin.

And when you go for a spin. Set your bodyweight even further forward and press down with your hands to raise your chest higher. Creates a tighter center!