Hi, for anyone out there, I'm having a small problem w/taking seg heights I never can tell if the customer is sitting at the same height as I am???? Does anyone have a cure for this problem?? If so PLEASE HELP!!!, I'm 5'5" & vertically challenged, especially when it comes to seeing if someone is sitting at the same height as I am :( please help! the funny thing is though, that I always seem to get the height right, but I'm a perfectionist, so I need everything to be just so.