We are currently harvesting vintage TBS rock (which is years old) while the first container of Walt Smith finishes maturing.
Here's a photo of a Walt Smith arch that was planted in September. You can see coralline starting, lots of bivalves adhering, and some macro attached. It needs more time to gather sponges, corals, coralline, etc.
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There is plenty of vintage inventory on the site and once the new WS is mature, we will be using both the vintage and new.
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Here is a photo of a vintage rock harvested 4 days ago.
You are doing a great job!