I have been doing ub work religiously now for about 1 year. Before then it was off and on but now I do it every other day. During most of that time Pyr. UB was my only tape so I did it every other day. I now own the GS series and CTX ub. Anyway, I am writing this under success stories b/c I have gotten a serious lift from doing these workouts. Besides losing 45 lbs and going from a size 16 to a 6-8 my boobs have lifted considerably. I hope this doesn't offend anyone but they used to face south and now they face straight out and I know it is b/c of the cathe tapes. The Firm is great but it didn't do it for me. I am 37 and I breastfed 2 girls (2 and 5). I used to wear an F cup now I am in a c/d. I recommend heavy chest work to all women b/c of the benefits I've received and I always tell them about cathe.com. Has anyone else noticed this improvement with chest work?