To be a pitcher you must realize your role is to fool the batter. Throwing the ball with every possible weird grip is not the path to success. Most of the best pro pitchers throw only two, maybe three, different pitches. The rest are variations - subtle changes in finger pressure and spin and speed. That's what creates movement and fools batters. Spend a year or two learning to master each pitch before moving on. Don't learn all the pitch grips, please. Remember: The best judge if a pitch is working for you is not the grip but the results it gives you in getting batters out. Also, be aware of the potential dangers - the risks of different pitches.