"Hi James, I think long fast serves can indeed be very useful. In a high pressure situation they might even win points from a nervous opponent. I think the problem is that players often want/expect to win the point straight from the serve, and when…"
Being unpredictable is a good game strategy. Fast long and short spin serves are both powerful techniques. I agree that trying to get a cheap point at times of pressure will often backfire. "
"I agree about the red being the Chinese national colour. The lighting comment makes sense as our bodies produce the chemical Seratonin in bright light. This is a creates a sense of wellbeing which may make players more confident?