I've heard good things about the legendary OAK rosin, no longer manufactured. However, I see that Supersensitive is making an Oak rosin for bass and cello. Arco has never been my strong point and I am aiming to correct that in the near future, and may as well (re)start with the right tools, which will probably mean a better quality French bow with black hair as well. I have an ancient cake of Pirastro and a year-old sample from Kolstein, and have read recent threads that older rosin isn't as good as newer stuff. -zat true? (My 30 yr old Petz still is sticky as hell ) -anyone try the contemporary Oak rosin?