With my experience with three esters of testosterone (cypionate, enanthate, propionate), I find myself leaning way towards Enanthate rather than propionate. As Im sure many people have already said (I did not read every post on this thread), Propionate's quick releasing ester produces much more pain than a longer lasting ester such as enanthate. This is mainly because of the B.A. that it is suspended in. There is also many things that go into the thinking about which testosterone to take. If you are trying to jump start a cycle that has longer acting esters, Propionate is the way to go and should be used for the first few weeks of that cycle. Also, if you are competing and would like to get that last boost before a competition, Propionate is also a great choice to use for the last couple weeks before the competition due to its quick results. For bulking, I strongly recommend enanthate which needs to be injected only once or twice a week, which is much less then propionate (another reason why injections can become painful).