So no practice just show up for playoffs thanks AI Lol
1. Experienced Player: someone who has played and practiced for 20 years + may only practice for 1 hour tops (if that) - this will be concentrated on single shots and / or certain scenerios the game can throw up. This type of player rarely benefits from long hours at the practice table.
2. Inexperience Player: someone who has only played and practiced the game for 1-2 years. Should, IMO practicing all the hours they can get!
So basically; your answer is dependant on who the player is and what they hope to gain from practicing.
KEY POINT: Practicing for 8 hours will not improve the pool players game if he / she are not practicing the correct aspects of the game or the weaknesses in their game!
We talkin' bout PRACTICE! Not a game.