hello to you.
advice
1] read the threads on both and decide which one your after. fly's are the best bearing diabolo you can get and have won many fans in fixed axel mode [i.e they are good] diabolo's. Gong-Qun are super smooth to play and very sexy.
2] come to quirkus in manchester and try before you buy.
3] Ask that guy whos always trying to sell diabolo's

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