We had an NBA Fastbreak come thru the shop and ipdb.org didn't have any documented photos of a sample or prototype, so I thought I'd share them here for anyone interested.
Playfield is dated October 22, 1996 and serial number is 53653100010
Difference that I've seen are the following:
Side of head has smaller decals with black out line showing [like shadow and STTNG had].
Pinks on the playfield are a REALLY light pink - not dark pink like production.
4 players have a blue background instead of production clear.
The defender had a clear background instead of black [the top was broken off this one when it came in and I replaced it with one with a black background].
Red lamp boards under the playfield
Red defender opto board under playfield
Red shot clock boards.
Probably the weirdest thing is the Apron. They are cut out photos installed on a black apron. Perhaps the aprons weren't ready yet when these shipped?!?
I wouldn't say it was HUO, but it's close and very nice condition. Check out that shooter lane!