Maybe just my opinion, but fish are more finicky when it comes to live bait than most good lures that have proven themselves. Live bait just sits there moving very little if at all. Bob's and my designs are in
constant motion that pull the
strike trigger on super sensitive fish.
Repetitive motion is key. Of the shapes posted, most will catch fish more often than most lures sold and far more fish than live baits that sit in one spot vs covering water.
example of a good
action-profile: Mr. Twister curly tail grubs have caught millions of fish after their introduction 51 years ago and that particular action-profile has caught almost every freshwater species. Why? -
Repetitive motion.
Note: One thing I've found is that not all fish are prone to attacking lures in the same water on the same day. Some areas - deeper fish in particular - seem harder to catch, whereas shallower water fish near structure, seem more apt to strike.
When it comes to color, too much emphasis is given to
hue which is why I posted examples of clear lures. In fact, my first clear hard-plastic lure to catch bass over 40 years ago was a clear plastic Zara Spook, surface lure. After that I caught bass on clear plastic crankbaits.
Attachment 476454
Sorry if I'm repeating myself, but, IMHO color may
enhance a lure's action-profile. A lure's action can be subtle or wild, same as a color can be clear or super bright. On any day, either may catch just as many fish - but only so long as you are casting one of many good action-profile lures.