forcy 20cd +9 vs ro/topaz 36 +9

[sekirei]

Hi for now days when came bm3 what's better 2 lose some basic atk and gain more cd or keep atk ~962 at 160 lvl ? cd ~160-170 with 2 cr+2
and what combinations of bm3 fatals u using ?
I know that "u need put your weapons +11 and more" but with my luck 4 these days I'll better get items and then will farm for luck 2 enchant it )) it worth 2 spend ~ 2b on ro/top or stay with mith/forcy and change only crystal to 36 cd, or farm over 2b for 40cd ?

[ieatfacebook]

more cd for bm3 the more you have the better

[Aphyxis]

Hi for now days when came bm3 what's better 2 lose some basic atk and gain more cd or keep atk ~962 at 160 lvl ? cd ~160-170 with 2 cr+2
and what combinations of bm3 fatals u using ?
I know that "u need put your weapons +11 and more" but with my luck 4 these days I'll better get items and then will farm for luck 2 enchant it )) it worth 2 spend ~ 2b on ro/top or stay with mith/forcy and change only crystal to 36 cd, or farm over 2b for 40cd ?

The general consensus is to sacrifice base attack for cdi for bm3. Outside of bm3 though, I would use at least one mithril weapon unless you have +13 or higher red/top weaps, in order to preserve the base attack. A quick way to approximate your calculations is that 10 cdi ~ 25-30 atk.
For bm3, the main ones to use are ABAA (increase critical), and maybe BAAB (chain pain). AABA (share pain) is usually not worth it, especially with the -500 HP drop, and it usually is inferior in damage (in my case at least).