retrieve of a jig can be done in many ways. first off, you need to determine by trial, what type of retrieve is getting you bites. as a general rule from my years of fishing, a coasting type retrieve is best suited for sping type water temps and colder. during warmer water conditions, have had more success with a retriever where you lift and let the jig drop straight back down. this is done by maintaining a bow in the line while the jig is falling back to the bottom. i know that wrb has had great success using a crawl along the bottom type of retrieve, and you can not argue the effectivness of that retrieve by the numbers of giant bass he has caught. the bite on a jig is rarely that traditional "tick". most ofter something different happened that should not have. hook sets are free, and you will be amazed at how many bass you begin catching by setting the hook anytime you even think something different just occured. i have witnessed many bassers miss an opportunity to catch a bass on a jig by starting to feel for it, and actually let the bass tighten there line up. most often that results in a miss or poor hook up. keep fishing that jig. try different trailers. although, in my opinion, when hunting a big bass, pork is still the best option for jig trailers.
keep swinging and you will begin to better discern those next to nothing bites.
bo