I'd bet that you thought this was going to be about the fall rate of a jig/trailer. It isn't, but the information can be applied to jigs. I'm talking about the fall rate of your wacky worms, tubes, neds and plastic worms.
I'd venture to say that the majority of anglers fish a wacky worm either weightless, or with a very light weight. After all, it's that slow fall and enticing wiggle that'll get you bit. What if I told you that there is a time when a faster falling presentation will put more fish in the boat? That time is NOW! Most seasoned anglers know that faster retrieves work better in the summer, but never consider a faster fall rate for their vertical presentations.
I started experimenting with heavier weights on these baits a couple of years ago. The weeds at a local lake would reach the top in 15ft. of water and I needed a punch rig to get through them. That 3/4oz. weight rockets to the bottom, even with a bulky plastic, yet almost every fish I tied into hit that thing on the fall. When I fished my home lake, which has very few weeds and is very clear, I experimented with heavier weights. First with my tubes and later with rigging straight tail worms. Originally I figured; If nothing else, I'd be able to cover water faster. What I found was that a faster fall rate worked exceptionally well when the fish preferred a vertical presentation.