Firstly. I tried a number of Yonex racquets. Ax99lcw duora 10 lcw and nf800 suits me the most. I have also tried ax99, 88s, 88d, dzs and ldf. All in 4u g5 spec except for dzs and d10. I am an intermediate player. I decided to try lining. The aeronaut 9000c or 900b? Both has similar technology and I am unable to test it. Specs that most suit me is head heavy or even balanced. Stiff or medium flex. Both is perfect. I rarely see reviews of 900b. Secondly. I used ac102ex super grap for about 2 years now my finger skin seems to be peeling off. Any solutions to that?