i understand the vets and many others here want to keep everyone safe and i really appreciate that(seriously its great). eroids is a great forum, theres a lot to be learned and the community is great, everyone helps one another(usually). so to your question: i dont see myself running many cycles, hell i may only run one my entire life. so i suppose i wanted to stack it on because i heard (from many people on eroids(they didnt say for first cyclers) and people i know in real life) that the two together work great for a good bulk cycle. probably not the best answer but thats pretty much it, also i liked your marathon and sprint comparison its simple and to the point. thanks for the advice.