Surfing Waves

I can do them on my 5'10 quad Fish, no problem because it gets so much speed from pumping. I can rarely do them on my standard thruster because its just so light, and the wind blows it out of control when I'm in the air, or I don't get enough height (sometimes i'll get too much, kinda hard to explain). Also, I am trying to get better at those cheesey credit card airs, the chop hop. I can kinda get the first 180, but I never can get the second 180 around, any help with all of this??

Shift your weight to your front foot when you have landed the first 180.

And just look over my shoulder I guess? Thanks