I strung my new 88D with AS at 25Lbs, normally I used UM66 at 28Lbs. My Racket guy recomended 25Lbs becasue AS has a lot of replusion he said. here is the thing, using 50% of my power the AS is a joy I clear every shot with ease the sound is nice the feel is fantastic. But everytime I smash I feel the string absorbs my power, the harder I smash nothing really happens It's slow...Why is that? and again for every other shot other than smash, it feels wonderful.