And, a local source here in D/FW, KC Injection Baits, has a 6" willow leaf ring worm with a ribbed body and a split tail. Sort of similar looking to the bait you show the photo of.
I ordered a couple of packs of worms, left it up to him on some color considerations after telling him what lakes I fished, and all of the worms worked very well.
I have always thought one could discern a quality difference between Yamamoto's worms and plastics and most others. KC's stuff was of this sort of quality.