Nothing if it fits your needs. My general big game hunting does not require multiple shots on multiple targets at muzzle to 50m, and therefore the 1x is not needed. It would live on 4x on a bolt gun and I find the 6x SS to be superior for general hunting which for me 90% of shots are from 25-600 yards and the 6x or 3-9x is superior for that use. If I absolutely required illumination then it may be different, however the 6x and 3-9x SSs take one we'll past legal light.
