ive experencd first hand that the red hooks make a difference on at least mid-to-shallow crankbaits during the day, i was fishing with a partner one time and i cought about three on the back hook, he told me to switch the front hook to a red one so i did, . . . there were only fish on the front hook from then on

i believe that it has to do with a bass' "genitic" reaction as to why they go after the red