It was pretty difficult to get it in at all, really. I tried a lot of folds, but none of them would go in at all until the seven fold. The seven fold wouldn't unfold. I've been trying at it so long that I've listened to half of an old James Bond movie from the bathroom and I believe a few pieces of my hymen became victim to my Lunette (which I don't really mind, in fact, I think it will make it easier). I think I did get it to pop open once, but it didn't seem like it was fully open. When I tried to get it out, it definitely had some sort of suction, though.
Could someone help me figure out a fold that will pop open easily and not murder my nether bits? I think the origami might do the trick but I can't understand how to do it (it seems like the Lunette is too stiff to do it as it's done in the guide with all of the folds and it always pops open too early for me). If you recommend the origami fold, could you give me more in-depth instructions, as I can't seem to get it right?