I just throw this out. The 2019 Pro V1 suits me better than the 2021 generation. Apparently I am not alone as, if you can find the 2019 generation they come at a healthy premium. Twice now I found sellers of the 2019 balls. Unfortunately, when delivered they were in the old box but they were actually the 2021 generation as indicated on the side stamp; each generation must have a distinctively different side stamp. Hopefully, the 2023 generation will be closer to the 2019 generation. Again, I throw the out as a warning if you are like me and looking for the 2019 Pro V1 balls.