well i have been playing badminton for a few years, gotten better these last 2 years, but i took a short break of abou 5-6 months, when i started playing again, i easily got back most of my playing abilities, and nothing was wrong, except that my smash was still not as great as it used to be but i thought time would deal with it. However my smash did not return, and one day i forgot to bring my racket to play so i used a crappy one they had in storage, the weight, string tension, grip was all crap, i could push the strings like wayy back, they were very loose, but after a while i got used to it, and found out i only had to use more body rotation and some more effort to get the shuttle moving like it did with my normal racket (or almost like my other racket), but what was actually better with this racket was that my smash seemed so much cleaner and faster. The next week i got my own racket back and my smashing was back to how it was before, of course i had to put more effort etc into smashing but no matter how much effort i put into smashing with my other racket, its not a huge improvement, then i noticed that the crappy racket i used was a stiff shaft and mines was a flexible one... SO my question is, is there a better way to smash with a flexible shaft, maybe i changed my form slightly while i had that 6 months break and im just still not used to it but its a little annoying when ur smashes arent as good as they were and as good as you need them to be. Im no expert at rackets but i do know flexible shafts are supposed to be defensive, is that why i smash better with a stiff one??