What do you mean "juicing their animals"?
There's no question that Godolphin provides the best of everything for their horses. The question is if Essence is as good as the others he will be competing against on Saturday. Tom Albertrani has already been quoted as saying that "he (EOD)will be up against it", and they are hoping for a faster pace and that the distance will help and that the horse "seems" more focused since the Derby. I will presuppose he is making an honest statement of his personal opinion about the horse chances.
On a related side note it's refreshing to know the although the brothers (the sheiks) have the final say and will sometimes disagree with their trainers and jockeys people like Albertrani and Dettori can voice their opinions honestly and openly without fear of loosing their jobs for what they say. Another example is Frankie has always openly said Sakhee is better on grass than dirt.
Back to EOD, I can draw a line right thru EOD's BC effort last year, but I can't do the same with the poor Derby effort. How much of a fast pace does this horse need to finish strong? IMO, At this point in his career and whatever the distance what EOD needs is softer competition to be competitive.