Id would agree that those were never released as 5 screws ... I would figure at least 1 would have surfaced by now as well. but you never know ... it definitely is possible as maybe there was only just a very, very few.
Id like to know why MUSCLE, Gumshoe, Soccer, and stack Up (there might be another one, Sqoon ? i cant remember) were only released as 5 and no 3 screw. maybe those titles just didnt get a later print release like the infamous, Stinger ?