OK, peeps, my crafting posse has once again come to the rescue and advised about how one deals with the abject horror of an invisible zip, on a bias cut garment, that waves and bubbles like a bitch.
You must see the comments in this post. Some serious sewists weigh in and for that I thank them all.
Then check out this great Threads article (thanks Marina).
Then check out Sunni's awesome post that I should have read - in fact I'm sure I did read - yet somehow my brain completely glossed over it. Hmmmm...
I'm going to give this zip another go. Like tomorrow. After I've had a chance to drown my sorrows a bit. That would be with booze.
Remember, if you've just experienced this zipper malfunction, don't panic! We're gonna be alright. Especially if we drink.