1st Invert, which one should I try?

I want to try my first invert, but I don't know which one to try. I've been told by the local shops two different inverts. The H/S Backroll, and the Tantrum. I first thought about trying the H/S Backroll, but I've learned more about the Tantrum now and it seems a little easier to do. I understand the concept of the edge for the tantrum and was wondering once I hit the wake do I just look straight back and the pop will throw me rail over rail? Or do I have to force the flip after I pop? Should I attempt the Tantrum first or the H/S Backroll first?