If you assume that a full time position player (not a catcher) could get 600 plate appearances that would pro-rate to about 30 homers for a season. Not too shabby.
It's eight home runs in 126 at bats in AA at age 21. Many of his age peers are College players drafted last June; only the very best of them would have started in AA. He's still several years from reaching his peak years physically, and he only has one fielding error above Rookie league level. Granted, the statistical sample is small, but the trajectory is impressive.
