Now, i don't know whether i'm a beginner or an intermediate player, but i've been playing badminton for quite some time, but never actually bothered about grips, strings, tensions, and such. I suppose i'm a beginner in equipment though. I'm looking to change my strings and tension for the models i've stated in the title, but unsure of what to change to. I'm looking for a durable yet high-performance string, as i do not want to keep changing. I'm not much of an offensive player, i mostly play the front man in doubles, and i try to return smashes as much as i can, and play net shots. I'm a bit of both. I smash seldomly when i see the opportunity/need to. For the string tension, i'm quite small, (14 years old, but still small.) and weak (sigh), i play golf, and tennis, (i guess soccer doesn't matter here), so maybe that helps with swing speed, i heard 22-23 lbs is good, but again, not entirely sure. Thanks.