Hey Murph, The 2016 Pure Aero VS with the 21mm straight beam was used from the older Aero Storm Mold. However, the new 2020 Pure Aero VS is a brand new mold and different frame. It is actually my current racquet of choice. It's really awesome, and has similar qualities to the original Aero Pro Drive, with just a little more head light balance. It's definitely a control frame, that offers really good pop, as well. Anyways, I believe the older Pure Strike VS (all white) was the same mold as the pure control tour, but it definitely had a different feel. However, there is a brand new Pure Strike VS on the horizon, which I believe is set to be released early next year. From what I've heard, it is a brand new mold as well. The new Pure Strike VS should have qualities similar to some of the older Pure Control frames. I don't know if that helped or was more confusing, but I'm definitely stoked for the new Pure Strike VS, with its softer, smoother feel, and 16x20 pattern, in a thin beam. Cheers!
-JG