There were close to 200,000 headers to download for one of the binary groups and it’s taking a long time to get them so I think that means that the retention in that binary group must be much better than before.
/crosses fingers
***EDIT****
Oops, that was counting UP so it’s over a half-million headers for that group. With 64 groups to to full updates for it’s saying it will take over an hour at 350k (which isn’t really that fast but it ain’t nothing to sneeze at either).