Seems to be a crap shoot on the 319s from what I can tell.

Re 320 AVOD - somewhat mixed reports (I'm typing this from my phone, so researching it is tough). It's worth noting that the first 320 to get mods has gone back to SAL, so it may be getting the fixes to some of the original issues and/or AVOD. That's 100% unconfirmed though.