I remember during the "juiced ball era" seeing on TV (perhaps on "Sports Science") where they showed how the balls were made and the testing criteria for them. The balls were launched at a wall of wood at a certain speed and trajectory and the criteria was that they had to bounce back and travel "x" distance but no more than "y" distance. The balls at that time were travelling at the very high end of the limit and this was reported as being further than they had ever bounced before. So... "juiced", I would have to say no, as they were within the official guidelines but "livelier than ever before" I saw with my own two eyes. Make of that what you will. As for park factor, when MP was under construction, the original plan didn't have the "jutted out" part of CF where it's 400'. It was to be about 380'. When the change was made, the rumor on the job was that Yount (who was working for the team in some consulting capacity) demanded it. I have no idea if Yount brought about the change or not, but the change was indeed made.