Anyone do just glabella (not the rest of the forehead)? Do you find over time your other forehead muscles are compensating, or is that just a scare tactic to get u to spend more money, lol? I have a deep crease in my glabell and just had my first Botox treatment and love the results, but they warned me that if I don't start doing the whole forehead my other muscles will compensate and wrinkle more. Right now the rest of my forehead is smooth as a board so I just can't see spending the money on wrinkles that aren't there. Thanks!