I read a guide once, a guide that told of a really nice strategy on how you get 128 Vigor, 50 Speed, 42 Stamina and 128 Mgc. Pwr while still getting 9999 HP and 999 MP.
The Stats are no problems, but I forgot what Levels are recommended for boosting HP and MP.
I THINK they were 46-50 for MP, and 69-71 for HP, but I'm not sure.