I think when people say that they react differently to "different" kinds of test, they ignore other factors involved. The obvious are diet, sleep, and training differences.
But the less obvious thing, that many people don't even think of is the timing of the cycle. To accurately compare the different tests, you have to do cycles at the same time of year. Your body has many rhythms that affect everything about your body, especially hormone levels.
To accurately compare the tests, you must do your cycles at the same time in your circannual rhythm (seasonal). As well as your other rhythms (circadian, untradian, infradian, tidal, cellular, etc...)
So basically, it's not really accurate to say that because you react differently to tests with different esters, that the tests are in fact different.