Hi Dw23,
I can't speak in regards to the Darkside, I don't have one (Not released to staff). However, CT compared to the RevM gave me exactly what you're looking for. My CrunchTime looks like a stronger version of the RevM, with some (med)oil, it clears the heads easily and starts to pull up in the midlane and turns over with a very strong arc in the back. This ball should do the trick for you.
Good luck and feel free to contact me if you have any further questions, thanks.
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Rick Leong
Ten Pins Pro Shop
Track Pro Shop Staff