The Whipsmart is a great swing that can do a lot of positions because of the removeable straps and the range of adjustibility. Additionally this kit comes with the swivel so you can use the spinning positions as well. It does not have handles which are required for some positions, but they can be added here. Additionally, you can add squatters. The only drawback is that being a single hook swing, if you use it on a stand or other lower installation, it may not work well for positions that require a lot of height like the vertical 69.
The Whipsmart Swivel Swing Plus Swivel can be used in 19 out of the box, but with accessories, an additional 16 positions can be added.