Theres no such thing as a best mass stack. It all depends on what you eat. To get the most out of your cycle, you have to make sure you are eating 6 big meals per day. what are you stats? have you ever ran a cycle before? if yes what were they? once you give us these answers, we can help you better.
havent run one for 4 yearsgot a real bad injury completly healed I eat 4500-5150 aday 7 times competly clean diet made by professional dietition can any one give me good amounts for a 12 week