Here's a link to an excellent radio program from 6/8/12 about oriental bittersweet and a forester's "Bittersweet Challenge" to find the largest oriental bittersweet vine in Massachusetts. The contest ran through 8/12 and the winning vine was over 7" in diameter!
The Bittersweet Challenge- Radio Broadcast and Transcript
Rules For Lincoln Bell's 2012 Bittersweet Challenge
Is it time for a Glastonbury Bittersweet Challenge??? Don't throw that monster vine away yet!