At the impact speeds commonly encountered in standard pickleball play paddle ball impacts coefficient of restitution is not a meaningful metric or useful in regulating or controlling the ball speed of the game.
Using generous bounds including a hypothetical cor range of 0.75 to 0.90, the difference in return velocity would be essentially negligible and less than 5 mph under this generous criteria and assuming a collision speed of 30 mph.
I don't think anyone is going to make a strong argument that trying to control ball speeds within the limits of plus or minus 5 mph is going to be productive.
Finally at the paddle weight has not been capped testing cor is hypothetically even more pointless. Simple examination of mathematics do not justify this type of action if it is taken.
We believe it is important to explain to players that this changes possibly taking place and may affect some of their favorite brands.
It's time for professional pickleball and the organizations entailed to decide what exactly they represent. Do they represent actual safety in which place advocation for PPE such as goggles are now a necessary precaution? Or do they represent pro play in which goggles aren't pretty looking on tv?