blackjack grass
Good all round knowledge of specific knowledge or excellent? Which would you say is better. to play sports.
Is concerntrate profitable for one area of sport, for example, if I had concertrate at blackjack and learn all there is to know in this field (Luck is necessary) or if you only had to say concertrate lawn tennis matches or horse races over 5f. the only problem I have seen you need to know all opponents in the game if he could not concertrate only a player or a horse can you do?
Focus on what you're good. His idea of concnetrate in specific knowlledge is better.
Blackjack Davey (cover)