Agreed, through various testing I've come to believe that paint is currently the largest barrier to improving accuracy. Although tbh, I'd be pretty happy if we just got good spheres.
Josh,
That calculator you linked is incorrect, acceleration cannot be measured in fps. In fact, again, it is incorrect to use force in this case, you need to look at energy. There is no way to put a simple number on the acceleration of a paintball impact without simulation or experiment. I suspect you'll find that a paintball gun imparts roughly the same energy to both rounds.
If an insurance company is seeing higher or more frequent payouts using a particular object or device, you can bet they care far more about that than an ASTM standard. That said, again, I suspect there's a reason Tiberius hasn't applied for or been approved for ASTM certification.
Thank you for your concern regarding ASTM on the Paragon, we have already purchased the relevant standards.