Hello you all, After a long time thinking about it, im finally going to buy my own stringing machine and i would like to have your help to choose it. Currently, my choice is already blocked on 2 models : The pro's pro challenger 2 and the pro's pro shuttle express. My reseller told me that the shuttle express would suit me more because i'll only use it for badminton rackets but this machine doesn't have fixed clamp and im not very confident about crank mecanism because of the calibration problem (i've read the begginer topic). So what do you think? which machine would suit me more? Thank you