Checking in to see how your repair is going, hopefully making progress. I agree removing the toe kick doesn't do much, but it does give a better vision to see where the leak is coming from.
I was over at CC in April, and as they were going over things that I should keep an eye on this item came up. They get a lot of these where the drain slowly leaks and owners are not aware until sub floor damage has occurred. Went home and checked mine and it does have a leak but only a few drops after I flush down a pretty full sink of water. We now just drain the water slowly and have no leaks.
If you can I would greatly appreciate pictures of that drain going through the floor.
2002 CC Intrigue 36' 11356