I read in the forums, before the last big update, that A++ range would garner more plus plays in larger parks, such as the Palace of the Fans. This was posited for outfielders playing in those parks, players like '73 Billy North, et al. I tried it once, and did get a ton of plus plays. The team overall didn't do that well, so I never tried it again. Generally, I would say that D is over priced, and we obtain better value by looking more at offensive abnormalities that may play well in such a park.