yes sw hs oa 180 are super easy. Do your half cab 180 with an indy grab and than do it again a little bit more oa by cutting a little more at the bottom of the wake. try it again more oa and so on. after 10 times you will land nice off-axis 180. You can do the same thing with your regular 180 but I've never tried it yet. I never fell on a sw hs oa 180 while learning it because I was taking it step by step.