All your sources on the Cambrian Explosion are older than Methuselah.
A Summary of the Problems with Creationist Cambrian Arguments.
China fossils contradict explosion-of-species theory. "Deep roots and tiny prototypes" 40-55 million years before the "explosion."
Just in general then, you have retreated from "the links are not there" to "the links are not there at the start of the Cambrian" and even that isn't true.
Awaiting the next round ...
Take a Breather Placemarker
The links are not there.