Short esters are not more anabolic!
Even today, you will hear people claim that shorter esters are stronger, per mg, due to their decreased ester weight.
This is 100% wrong! While shorter esters do contain a greater amount of steroid per mg, they are NOT stronger per mg. In fact, in every study ever conducted over the last 80 years which examined this subject (there have been
many), longer esters have continually been demonstrated to produce a greater increase in protein synthesis, per mg, than shorter esters. This translates into greater muscle growth and is a direct result of the longer ester's extended active life.
In one study involving 200 mg of test enanthate and 200 mgtest prep, protein synthesis was increased roughly 190% in the test prop subjects, while protein syntheis increased over 240% in the test enth subjects. There have been literally dozens of similar studies going back to the 1930's and in every case, the results are always the same--the longer the ester, the greater the increase in protein synthesis, per mg. The anabolic benefits of having a longer active life simply outweighs the anabolic benefits of reduced ester weight. The reserach is abundantly clear on this fact.
The reason some people appear to get better gains using short esters, at least intially, comes down to release rate. Short esters, like prop, release testosterone into the system very quickly, so naturally, gains will take place more quickly. However, whe protein syntheis is measured over the entire active life of the steroid, greater growth occurs with a longer ester. So, while short esters often produce more gains up-front, they do not produce greater gains in the long-run.