Male crawfish are generally larger, have bigger claws, and have smaller tails than the females. Does this matter to the bass and the angler? In some instances, yes. Some scientific evidence suggests—and I’ve also personally found—that baits with large pinchers get fewer bites. Large claws, however, can be a plus when trying to score a reluctant bedding bass, so it’s a good idea to drop a bait with large pinchers first, then follow up with a bait that has small ones. If I’m in a blind fishing situation where I can’t see my targets and how they react, I always opt for smaller claws. In terms of choosing colors, remember that there are sometimes multiple species of crawfish in the same body of water. Simultaneously, you’re dealing with different stages of the crawfish molting phases throughout the season, which also causes variances in shell color. And last but not least, crawfish are sort of like chameleons in that their shells have special light receptors that allow them to blend into their surroundings. Do they become an exact match of the bottom their hiding in? Not 100%, but they do camo-up pretty well.