jamezzy: what color is behind your head?
SSE5000s are usually seen with ESU and/or Highway, but I have seen very little usage of them, most ESU/Highway carry VX-537.
Highway District (and, as far as I knew, ES) did not carry Saber Special Editions. They went from Saber 1Es (or Saber IIs, at best) straight to the Vertex VX series radios. The channel capacity (16 channels x 6 banks = 96), as programmed, of the SSEs is too low for citywide commands such as ES and HD.
I can not confirm jamezzy's claim that APs are carrying Saber SEs, but in terms of uniformed forces, SSEs have been relegated to the reserve stockpiles carried in field command posts that are made available to any MOFs that:
(a) show up for an event without their own radio, or
(b) have their own radio, but do not have the channel programmed in them that is being used for the event