Well I'm starting my 2nd week of Prop/Fina. 100mg Prop/75mg Fina ED........Well everyone has said that a side effect of doing fina is cardio is harder to do....well I havent really experienced that yet, but what I have experienced is that I dont have to work as hard to get my heart rate in my target heart rate zone. Sometimes I think I'm not going hard enough but I wear a heart rate monitor and I look down and I'll be right at my max, which for me is 146........my heart tells me, "Come on dude, your not even doing anything", but my mind says, "Stay where your at, it says your in your target heart rate zone". Do you think this has anything to do with teh Prop/fina?? Surely it has to, and am I still getting the same fat burning effects not working AS hard but yet still staying in my THR? Anyone else ever experienced this with Profina or am I imagining things?? Thanks guys.