From my own experience, it seems that the best is like this: At900T ---> white AT900P ---> black Arc 10 ----> red! NS9000 ----> yellow What do u think about it?
At900T ---> yellow AT900P ---> yellow Arc 10 ----> yellow NS9000 ----> yellow Conincidentally BG80, my favourite string, is easily obtainable in yellow...
Friend of mine has purple BG65 strings on his At900t I think they were limited edition it goes quite nicely however blue ones and yellow once are nicer
I only use Yellow or White for all my racquets...I will choose another colour if those 2 colours run out~....Fortunately, they have not yet ran out for me~
To answer Script's & LazyBuddy's question. Yes BG80 does come in Wine Red but its very very hard to get in some countries. I got mine from a friend in Malaysia. He mentioned that it was the only place he could buy it from. I have looked in UK & JP and not found it.
I've yet to meet a racket in which Optic Yellow doesn't look good (or white, for that matter) but I think LD rules has it bang on; I would add black for the 900T.