Using a lighter jig may make all the differnce
My usual jig head weight is 1/16 oz for most soft plastic lures, but once the water temperature went down into the mid 50's, presentation speed had to change. The lures I usually cast are less than 3" long and slim in profile. Rarely do I use curl tail grubs preferring straight tails in different shapes : thin flat tail, cone shaped, thin double tail, craw antenna, etc. They all benefit from a very slow retrieve that provoke mostly inactive fish to strike which I assume is the case when no surface activity is present. I also started using Gary Y. 4" Kut Tail worms rigged on a light jig and had great success catching 4-5 species every time I fish. Here are two examples from yesterday:
https://i.imgur.com/Q2vHa9w.jpg?1https://i.imgur.com/4pZoqSV.jpg?2
What makes using light jigs essential in the above case is the type of plastic used to make the lure: sinking plastisol (plastic) and salt. The whole point of the design is letting it show off when darted near surface letting the body and tail wiggle and dart back and forth on the slowest retrieve. Fish that couldn't get the lure in their mouths, hit again and again on repeated casts to the same spot.
When it comes to odd shaped lures with short bodies, the same requirement is necessary to allow the lure's action to build provocation in a fish not feeding.
https://i.imgur.com/yv9fMGV.jpghttps://i.imgur.com/AkrUwyl.jpg
If I find I can get away going back to 1/16oz, I will especially when fish are deeper (7' or greater). But in mid to late fall, lighter seems to be better as the water changes in color and temperature, causing fish to move from one area to the next on consecutive days and away from shoreline cover.
Jig size doesn't matter as much with shad tail and curl tail grubs since the retrieve is usually steady to get the tail to move. But for straight tails, usually lighter is better IMO.