Creaking Heart Sticks Vertically

As you can see by the Creaking Heart texture, it has a similar appearance to sap, and that extends to the bottom and top textures. Why not make those two sides sticky? That could give valuable usage to the Creaking Heart for builders and redstoners alike.
If you wanted to make it consistent, you could make it only stick to other Hearts and Pale Wood because of the connecting textures.

Overall, I feel like this would give much more of a use for those blocks and encourage players to delve into the Pale Garden, rather than it just being a biome to avoid or only enter for the wood.