So I have a recording session coming up pretty soon, I'll be playing a lot of pizz but some arco. I have black hair on a German bow, have owned the bow for a few years and never re-haired it, but a good portion of the time I have owned it I've been playing mostly pizz. The past few months I've been getting back into arco and figured it was about time for a re-hair. Just wondering if I should wait until after the recording to re-hair since it takes a bit to "break in" the new hair. I also figured I could just clean up my current hair with a toothbrush prior to recording. I've only had black hair on this bow and am considering trying white hair or S&P. Is there a difference between white and black in relation to the string tension? Reason I ask is because I've noticed arco players like Edgar Meyer and Paul Kowert of the Punch Brothers always use white hair on their french bows, but they also play higher-tuned strings. I play regular orchestral tuning with black. Does the white hair grab better on higher-tuned strings and black grab better on lower-tuned strings? Does this make a difference? Thanks.