>>8148367>>8149482Hmm. They do have a bearing, but starburst response and its so light that it wont spin for too long regardless
(Mine barely spins long enough to rock the baby, much less any real tricks)
You'd be far far better off chucking ten bucks at the YYF B-grades for a cheap starter yoyo than putting any effort into fixing up a butterfly.
That said, Duncan is a respectable brand, just not their run of the mill walmart selection. Gotta go online to find their real offerings.