MY BODY HAS RESPONDED VERY WELL TO THE PS SERIES ONLY PART I'M HAVING TROUBLE WITH IS THE UPPER LEG BUNS AREA. I RUN 3 MILES 2-3 TIMES A WEEK ON OTHER DAYS I DO STEP AND HI LO FLOOR AND THE PS LEG TAPE BUT JUST DON'T SEEM TO GET THE AREA TO RESPOND .I DONT MIND A LITTLE SHAKE GOING ON BACK THERE BUT I SURE WOULD LIKE TO BE THE ONE IN CONTROL OF WHEN THAT HAPPENS.IS THAT AREA JUST REALLY TOUGH TO GET FIRMED UP .I DO USE HEAVY WEIGHTS ON THE LEG TAPE WITH GOOD FORM.ANY ADVICE OR SUGGESTIONS WOULD BE APPRECIATED....LOYAL FAN SINCE I DISCOVERED YOU .....