I'm a newbie here, but I just used a Big Blue towel yesterday. I'm always skeptical over such products and claims. I have been using Canon/Fieldcrest Charisma Select towels for the past year or so. Still a great cotton towel, but I can not see going back to them for drying again. BB's really do seem to work as claimed and they appear to leave no scratches behind. No double wiping and any traces of water that is left behind is so fine it evaporates almost instantly. Works for me!
Frank