i've never tried th BG-88ti, but i'd highly recommend the BG-80 or the BG-85. Both give great control and power. Also, i nevergo for the "TI" strings nemore because they dont really make a difference. It's basically, in my opinion, another marketing tool, but i might be wrong...
What string is bg 88 ti based up? From what I remember, bg 68 ti was bg 85 + ti coating... then I also remember said 88 ti was bg 85 + ti coating as well.