Particle Balls serve two purposes:
1. They help the weak handed to get control of the mid-lane when their game sees too much oil.
2. For players like me who tend to get too much "over/under" on today's house shots, they give me a smoother reaction to the walled up conditions.
In my proshop, most customers are looking for hook. Most of them don't have a lot of hand; many of them have poor to only modest technique. Whenever I suggest that they modify their game, I get blank stares. Particle balls help to bring more players into the game, who previously felt that they couldn't compete.