I have one of the older molds too, and use it. I'm not thrilled about using the Eagle Claw hooks it's made for, so have used a Victory hook and that produces a nice jig.
The mold I have had some modification on one cavity, which causes some extra clean up, but still pours OK.
I ordered the new mold from Zeiner's, after seeing a post online that was made mentioning this new mold.
I don't see it as a special mold, just another one to have, but I suspect it will have it's uses. They also appear to be bringing back the older "Y" weed guards too. I have some but only used them on small weedless round head jigs and not often.