Thank you very much for this reply. I'll check the count-off math again. I think I played it alone for too long and can't see the difference now, heh. I was already told today that those squares are too transparent, I'll fix that too.
It is a great point on wind effect. I think I'll just make it happen earlier (before the ball changes the direction) and make the last longer. But I don't understand about colour, I thought big white arrows on purple background are perfect ;d