er ok o_o but since I'm not familiar with Koshi's solo songs , I can't really say anything about it :O
But anyway , seems that the previews for GO borrow quite a lot of elements from their BIG BANG ! album :O
Like , I can hear influences of Koko Dara Dashite for the preview of Sabishigariya
I never like Koko Dara Dashite but I must say , the live version of it really kick some serious ass
Way better than what I heard on the CD