Texan
The word absolute in pitching for us means where the glove is located. As with the plate, a strike can be right over the plate or just on the outside corner where the edge of the ball is touching, it is still an absolute strike.
For our purposes with the kids anywhere the glove was held from mid-point of the pocket to the outer edge of the glove is absolute where the glove was located. We considered it to acceptable. From mid-point to the outer edge is approximately 3 inches.
For our purposes a ten minute bull pen every day for 11-12yo was normal. My son threw a 15 to 25 minute bull-pen at the high school level everyday. He currently does a 25-50 pitch bullpen everyday at the college level.