The feet are what attaches to the rod. Double foot guides are stronger but they are slightly heavier and you loose a small amount of flex in the rod. Single foot guides are lighter but are not as strong as the double footguides. Even though single foot guides are not as strong, they will work fine for most bass rods. Many new fishing rods have a combination of both guide types, using double foot guides near the handle and single foot guides near the tip where the rod flexes the most.
Sensitivity is one of the most important factors when choosing a rod.
Sensitivity is one of the most important factors when choosing a rod. With a sensitive rod you will, with time, be able to decipher what is happening with your bait. Graphite rods are generally more sensitive than fiberglass rods but there have been advancements in technology that have made some fiberglass rods as sensitive as many graphite rods. Sensitivity is also essential because many times the fish will bump the blades prior to striking. A fiberglass rod will give the fish time to inhale the bait before you set the hook.