I realize my previous note was not very clear. By "careful" migration to DIST2
I meant, "don't just switch all your lists at once and go on vacations in
Florida for one month" :-) I think the best way to do it is to start with small
lists, watch the results during a few days, then switch all the lists except
the biggest, make sure everything is working fine, and eventually switch
the most important lists if everything went fine. Peers can be switched all at
the same time or one after the other - they are treated as independent lists
for this matter.
 
  Eric