http://ooakforum.com/viewtopic.php?f=56&t=22125
Edit;
Interessante Antwort zum Plastikball:
*Based on your experience, due to the changes in the equipment rules, how would you advise a youngster now starting the game who wants to be a defender? Would you suggest that they play with long pips, or should they turn to double inverted and attacking play? Would your answer be different depending on what standard of play they were aiming to achieve?
It's very challenging to be a defensive player. In order to win, you need to practice both offense and defense. It's really difficult to win with defense alone, so it's necessary to play offense - not just offense, but at the same level that the offensive players perform. Moreover, my guess is that long pips will be less beneficial when the ball changes to plastic in 2014. I've used it, and found that much less spin is produced.
*What impact did ITTF decisions (like the 38mm ball) have on top level table tennis, and what influence do you think the new PVC balls will have (in particular for defenders and defensive style)?
The decision can benefit some players while hindering others. The players are somewhat weary because they have to make adjustments (in response to the frequent changes in the rules). Also, the PVC ball doesn't spin very well. Again, it's likely that the new ball will be a hinderance for long pip users.