i am an amaetur player , I broke strings quite often:sometime one string one week. then I decided to learn string by myself. i bought my first string machine in 2007, brand Eagnas,desktop type with 6 fixed point. after about a year , i think i should have a new machine with fixed clamp ,so Alpha desktop-4000 come to home! maybe i will buy an electric machine soon if i still crazy on string! i 'v collected a lot of materials about stringing mathod and stringing experience, a word document in chinese, i wana to share it wiht people who wana to learn stringing here,i hope it can do a tiny help . link here: http://bbs.badmintoncn.com/viewthread.php?tid=137529&extra=page=1&ordertype=1 , (wish you can read chinese. ) or,just download file from here: http://u.115.com/file/f624b6fcb5