Now that I have a heap of products from Fat Dragon Games, I want to start building and see how their sets go together. I really want some level of modular compatibility, though, so I'll probably be converting their tiles over to TLX format, at least with respect to how the tiles themselves are built. For anchors, posts, etc. I'm still thinking, and here's what I am hoping to try out very soon.
I'd like to take a regular FDG post - not the ones that are extra long to fit into holes in the tiles, but the ones designed to rest on top of the tile - and add a little piece inside it that would allow it to slot onto a TLX anchor. I'd either leave the bottom of the post open, or just modify the base so it has a hole around where the anchor would fit in.
By doing this, I'll be left with a Fat Dragon post that would continue to work with Fat Dragon tiles made the way Fat Dragon intended them, but I'll also be able to slot them onto a TLX tile made the way WWG intended them. That would allow 1", 2", 4", 5" and 7" FDG walls to fit onto a standard TLX tile, and If I'm so inclined, I could add WWG posts and walls to the same tiles. They'd abut the FDG posts, and might look a little out of place, but it would mean one tile set to rule them all.
Now, because I don't mind the TLX anchors, I'll end up kitbashing the FDG tiles into something TLX-compatible (I'm making my own collection of templates that are completely hand-made by me, not using any WWG files). If folks want to go in the other direction, they can easily take WWG tiles and carve the holes in the middle of the tiles like FDG's system wants.
It's not a one-system-to-rule-them-all kind of thing, but it makes me feel more comfortable about starting to make some FDG sets.