The variation he is showing seems to be the white bar variation on the bottom of the front of Michael Jordan.
1994 Upper Deck Collector's Choice - [Base] #635.2 - Michael Jordan (White Bar on Bottom) [PSA*10*GEM*MT]
Courtesy of COMC.com
1994 Upper Deck Collector's Choice - [Base] #635.1 - Michael Jordan (Base)
Courtesy of COMC.com