I get an "invalid session" message when tring to post a reply on the other thread...
Whenever I spar, whether it be jiu-jitsu, kickboxing, or with soft sticks, I always try to have a sense of play. It allows me to be relaxed more and from there my techniques flow better. There's a book by a japanese monk titled the unfettered mind that has ideas i try to emulate while fighting. The less you focus on hurting your opponent and the more you build an understanding about how and why you are training with each other, the harder you can spar.
That being said, in the intensity of a fight a little berzerker rage can be helpful too.
Woof C-Porn Star!
Are you still in Thailand?