Added the 4516 (-3) to the list. I'm trying to limit the amount of detail to keep the list manageable, so only the more significant changes are shown between the dash variants.

Added phantom models from S&W parts list 3944, 3946, and 5923.

DAO model change added to the bottom of the list.

My info comes from the SWSC and the 27th BBGV, both of which are copyright 2006. Hopefully the latest BBGV will under the tree this year.