Yupe

Lets arc to ans you but my personal opinion is, one is tight string can hit for hard feeling and another one is very soft feeling, more flexible to rebound

Hello Nick,

Yonex Bg65 is more for Hard hitter player.If ur wrist really powerful then Bg65 is the most power game.In defense section u need return harder then others model string.

Yonex Bg80 Well this string also for hard hitter but then for player which is use on the same time wrist and arm. So for defense still ok but not so good like Bg66..
Nick if u really want soft touch and attack u can try this model,

Yonex Bg9
Yonex Bg68Ti
Gosen R4X 100
Gosen Bioroot  66
Ashaway Zymax 67 or Micro Legend

If ur current tension u using 25 LBS if u strung do remember extra 1LBS from the model i stat above which is : Example
(25LBS + 1 LBS :26LBS)

BTW if ur racket it is stiff shaft then stick back same LBS u current using.
I never see u play before so im not sure recommend u what tension to strung up.
Some player just need wit low tension also can provide powerful smash or either high tension.Important u play the tension suitable for u can liau.