No, but $650 -$900 is a rather large jump for a difference that could be negligible. I also don't think CS is a valid argument in this case either. I mean we're not talking about Sundown vs. eD.

I just don't think there is a hands down winner.
I threw the crunch in there because no one has brought up size. Is there a size difference between the 2? That could be a talking point depending on how much room you have. In my case, I would take the Crunch over both because the power is the same, the support is the same, and the size difference is large. I can fit the Crunch under my seat and I would have to remove my seat for the Sundown.