Since nobody much has actually HEARD the PAX3 drums it's hard to tell.
I didn't buy a Tyros 4 simply because the drums didn't improve enough to suit me.
It is well documented how great the Audya drums are, so no need to keep harping on it.
Roland drums are acceptable to me, and on some styles the Yamahas are o.k., but on too many they are not. Again, this is FOR ME.
DonM