I do not like to really think about ester weights....it begins to confuse most people and they end up thinking that they must inject more to compensate for the ester weight. They end up over dosing the gears or over using, when infact most people already over use gear. Most people start at 500mg/week and in fact that is more than enough for good gains....they could probably get away with 300mgs. most of these guys are not hardcore bodybuilders and therefore do not need to start digging deeper into the science of things. this is just my opinion.