I think the Alpha one was the best looking of the bunch, but those are near impossible to get your hands on. I would say that this one is a little thicker as far as the over all size, and it's not quite as wide but it does really look great on the Slingshot.
The actual 56" carbon wing is the same on both the Alpha & Twist. The only difference between the two is the roll hoop brackets. The Twist Wing is compatible with all SS roll hoops from 15-18. Alpha had (2) separate brackets for 15/16 & 17/18 model years. Alpha's wing is discontinued with much of their other product line unfortunately. We have the Twist product in stock and ready to ship along with several installed pics here: https://www.slingmods.com/polaris-slingshot-carbon-fiber-56-inch-rear-wing-spoiler-twist-dynamics
We also have a video installation of the product here: