Prong tail grubs are not equal in my opinion especially if the prong tail is too short and thick. I have a bunch of a certain design that's been colllecting dust for a few decades but as usual when it come to inspirations, you never know when one or more will pop up. These were made by fusing the shortened bodies of two together.
The action when wacky rigged with a 1/24 oz jig produced an incredible tight vibration either on the drop or using a horizontal retrieve! Fished that missed the first time were caught on the second or even third cast.
Guess I'll be making a dozen more today!