Superior Critical Strikes Proc shows 4PPM in CoD, but is stated to be 3PPM in enhancement description

[aethereal]

https://cod.uberguy.net/html/power.html?power=boosts.superior_attuned_superior_critical_strikes_f.superior_attuned_superior_critical_strikes_f

 

Seems like they should both be 4PPM or both be 3PPM.  3PPM seems like a more correct value than 4 to me, but not sure.