If your looking for an ENC
instead of a RNC there are a couple missing down that way.
I can only find a RNC version for a few charts in FL, I've downloaded all of them.
The ones that are missing seem to be the odd ones that aren't oriented square with north up. I know this is the case for a couple in the Anclote key area. And I vaguely remember one missing south of Tampa bay, can't remember for sure.
I asked her about this last year, but no response.
edit,... looking at the graphical catalogs, I see no vector version of 11429 or 11430.