I am starting to get the feeling that M$ is getting a little sloppy because these later builds are sucking up more memory in my use.
Other Chefs are starting cooking separete roms for each carrier,
with specific manila & other Dlls,
which I believe is the way to go for reducing mysterious battery or memory or speed changes,
since there are slight differences in the actual units.
Anyway these are just my suspicions, I could be totally wrong