No, they are totally different rackets and they cannot be compared. (NS7000 is head light racket while AT800 is head heavy.)
I have AT800OF and just bought NS7000. Never try NS7000 yet, because it broke on a string machine since the first day. (Just 24lbs. tension) Wait to claim the new one.
Yonex-TH said it still an offend racket even it's a head-light. They said you can have more swing speed to compensate the light head. The official spec. and details didn't come out yet.
if ns7000 is a head-light OFF racket, then i'd say there are techs about it that COULD make it better. if ur swing is very quick, having a ns7000 could make ur swing even faster then that since there wont be a heavy head dragging u down. however, at800 OFF has a heavy-head and at times, it could help pull ur arm down during the swing also creating an effective shot. i guess it all depends on the type of player u are?
OK, Ive just strung my NS700 and gave it a spin. First off, its a 3u that feels lighter than a 4u. Second, I feel that while hitting in practice, you do not lose much power at all, I felt that I was being constantly let down by its head light frame in actual play. Let me explain. In practice, you have all the time to set up your shot. I guess since the racket is head light, the great bulk of the power has to be generated by your wrist with minimum assistance from the racket. So, if you do not hit the shuttle just right during play, you will lose power, as opposed to more head heavy designs, which I feel are more forgiving. Does anyone have any insight as to my obsevations?
The biggest difference between rackets is the player, and not the racket. On the courts, when the shuttle is mis-hit, beginners/low-intermediates will look at their rackets with an "what's up with this racket?!" expression, whereas higher-level players actually perform a practise swing to remind them of form. As usual, if this is baloney, then the NS7000 (or 8000) is being shipped on this March, thereby improving you game in a package deal, upon purchase. -dave