its hard work, trust me! you never knew you could pull on a paddle so hard. i would try and learn without straps to start with, unless your feet are exactly right you wont get the board out of the water. i have never used straps on my sups but you can see from these 2 videos the difference the correct board makes.
first vid is on a 7'9 converted surf sup with the tracks waay too far back
second one is on my custom 5'10 with tuttle mount in the right place. it takes 11 paddle strokes to get airbourne- same as the big winds vid but he is using straps obviously.
same foil in both my vids, 1100mm wing span handmade monster