Is is still the case that no currently available looper/delay can slow/speed up it's output ? ( like the PCM42 and the little blue one Billy Frizz uses ) Why is this - it sounds loverly. Meanwhile, the input/output knobs on my Jamman when turned make bad noises like 'curr-thurr-crtt-thump-futt'. Any suggestions ? ( 'sell it !' ) I'm obliged, Andrew