Again I am back to "maybe I don't understand the zipper line," because I thought to ski the zipper line would require that kind of "deflect off the bumps on either side without anything resembling a traditional turn at all" style I see in comps. If it's just "stay close to the rut in front of you that follows the fall line," then I've been working on that quite some time. And it's quite likely that when I talked to my instructor several years ago, I may have said I specifically wanted to ski like the comp folks, which would contribute to all the confusion.
Look, you guys are talking about all sorts of technical stuff that honestly makes my eyes glaze over, so probably I should just drop out and you shouldn't worry too much about what I've said. Except the Ziploc comment; that was gold.
Thanks, that makes more sense. Before you drop out, take a look at Blake skiing the zipper line slowly starting at 55 seconds:
You don't have to ski the zipper line fast. I think skiing the zipper line slowly is a much more approachable goal for most skiers to work toward.