Lately, I've been lending my spare racket to people in my badminton group to test out. One of the things we noticed was that almost all the players , even the ones who just started a month or two ago said their shots improved from their unknown tension default string tension, to my loner racket which is strung at 24lbs over a year ago. Most notably mid court drives were much crisper. Some gained power in smashes while others lost power. One thing that did seem to suffer for a large majority of the players was the distance of their clears. Some more than others. I also tested out their rackets, the tension ranged from super trampoline (less than 18) to maybe 24lbs. I didn't find that my power improved in the backcourt with lower tension which is where it is needed for me. Actually i would say for lower tension i could generate X power consistently regardless of effort but i had a tough time smashing as hard or clearing as fast as my 26lb tension, and i guess we could say it gave more power in the front court which i find kind of useless. So I am wondering, Is it possible to tell if moving up or down tension is more optimal for someone just by watching them play with their current tension, or if there is other characteristics to look for that would indicate they needed to up or down their tension? I am considering stringing 28lbs+ next time.