You might want to try looking in the Bemani Controllers Forum for some good feedback. Also, I would go with the Cobalt Flux, but I dont think you can get it anywhere other than online.
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I'm back from a 4-5 year hiatus from the forums. If you're a real DDRfreak veteran you may remember me as RevenG or the creator of EmoRanDdr. Oh the imature days of youth..well I've recently gotten back into the DDR scene and am back at the forums! I've missed everyone quite a bit and am glad to be back. PM me about anything if you wanna chat! Reppin that North Carolina DDR!!!