Good question. I have the delta, bought from b&l here on the forums, and I love it even though it didn't make a seemingly intense difference. Just seems more solid with plenty of opportunity to tune. I honestly haven't played with it much since I got it set where I like it with what I have, running with the stock bell still. I'm hoping it'll pair up nicely with the malossi Variator that's coming with my kit.
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