As a kiteboarding instructor for 20 years I can give the following help. Your board skills will be invaluable and enable fast progression. the thing you have to learn is flying the kite on the bar as every thing you do to the bar controls the kite. Pulling the bar increases the angle of attack and can stall the kites power. This is a habit that wakeboarder need to control as the kite behaves better if allowed to breathe and flow with whatever you need to be doing. I don't see the value in training kites, as they typically don't have the chicken loop system, and you can yank on the bar all day without it affecting flying performance. Save your money and have a couple of lessons on a proper kite and learn how to control the proper gear safely and get out on the water and rip.