Unimounts are the new thing. There's a good reason for it though. I can attest to the amount of comfort the unimount brings to the table. Removing the drop from my gun was the best idea I had had since inventing the internet. It puts the tank right up there in your shoulder, tight. Combined with a stubby, the unimount is far more comfortable than a drop because it makes the height of the gun considerably less. I suggest you combine this rail with the Custom Products on/off asa. They work great together and they look fantastic.
Unimounts are the wave of the future. Drop forwards are on there way out, only scuba tanks really require a massive drop to bring them into usable distance. The unimount is the way to go and this is a supreme example of one,