I had a lengthy swing session at the shop today of these two rackets - VERY impressed with the construction and how they felt in my hand... Felt like a good mid point between NS9900 and Arc10... My only gripe is what's the difference between these two model? I prefer an even balanced, not superstiff racket, not head heavy, and I thought 888 felt head heavy and 999 more even balanced. Is this true? Anyone know this for a fact? Any reviews/opinions/experiences on the control/power character of these two rackets?