I am looking forward to getting my LadyCup in the mail later this week. I actually ordered a small & a large in a package deal on ebay. I'm trying to get as prepared as possible for it's arrival! Any recommendations for the dry run? I'm guessing the tub/shower is ideal...but actually IN water or no? And as for position, is it just a matter of preference? Squatting, laying, etc. And do most people find some sort of lube is necessary? Thanks!