I like to catch mine 90, bring it down and revert the rest. I love half cab flips, after regular kickflips and fakie flips, they are probably my most consistent flip trick. I think they sort of have a bad rep sometimes because they're lumped in with varials and sex changes as sort of a grom trick, but I've always thought they were legit. A nicely popped and caught one is one of the nicest looking tricks ever.