Quoted from singlezero:production for surf champ was 1075 surfer was 2700 . this is actually an oddity for 2 vs 4 player games or at least for the games I have owned or compared..
four player games far outnumber their 2 player counterparts with
superspin/jetspin
royal flush/card whiz
target alpha/solar city
hot shot/big shot
Vulcan/Fire Queen(same playfield .. different bg)
I have been pushing for 2 player games myself too. I had a surfchamp .. regretted I sold it .. been offered one but im going to hold out for a surfer.
target alpha I have , and .. I guess ill keep as I bought a new glass for it.
production numbers from mr pinballs price guide
Read above, the 1075 was most likely a typo, more like 10,000