JohnP,
I had the same understanding about motion-holes in asym balls.
Meanwhile, I did read a post by a second bowler who said he was going to or had motion-holed a REAX-2 asym ball. However, I have not seen any followup details.
I guess it's mainly a matter of higher risk the balance hole won't work coupled with higher risk plugging won't salvage the ball.
Still hoping to hear from anyone, good or bad, who might have taken the risk.
thx,
Bavant