Doesn't really count as an "opening day," but at my friend's backyard setup we had a flat-drop-flat rail. I showed up, hit it twice, then tried a k-fed and got it my first try, I'd never even landed one last season after countless attempts.
Needless to say I was mad hyped up after just showing up and throwing down, that k-fed wasn't even the best part.
I landed blind swaps, blinds 270s out, 270s on, front 450s out, ray-feds, and a couple others I don't remember. That was in October.