Awesome plan pearlie! Filling the ridges with tinted silicone will work really well! I tinted my silicone white and I've had one heck of a time getting the dark green to stay on the ridges! It likes to run right off the sides and it takes so many layers to get the color right. I'm planning on tinting ridges the actual color from now on after my experience with this tail. It wasn't so bad with my first tail, but then again my ridges were much wider!

I can't wait to see this tail! You really come up with some amazing ideas! If you ever head my way, you have to come visit. we would have a blast talking about silicone!