The best and the fastest way to improve the badminton skills is to take a private or group lessons trainned by the professional coach. I would recommend you to go to Dariel at "Clear One" or take a lesson from Ming who is a formal world Olympic champion, but beware of the VRC "Head-Coach" Calvin who just pretend to be good, but in fact his coaching sucks! Oooch! Calvin who never does much of the teaching, and the kids that went through his program never actually get anything out of him or minimum. If you take a lesson with Calvin, you just waste your time and your money. Honestly, Calvin techniques is very old fashioned, outdated, and very very low compared to the asian or european standard. If Calvin is so great, why he haven't trainned any canadian players going to the Olympic Games for single or even passing the 2nd round in the Olympic Games. Anyway, you guys, good luck with your badminton!