If you think about it, a bullet weight is really nothing but a means of getting a soft-plastic to the proper depth. So can using that weight as an extension of the lure be a bad idea? I'm a firm believer in clear, pronounced eyes on any lure. When I tie saltwater flies I always add bigger stick-on eyes than needed. When I buy hard plastics, eye size is important to me. Large eyes, I believe, can trigger more strikes than lures with small or no eyes, so I think there are certain situations, such as in stained water, when a bright bullet weight with an eye may turn more fish.