Ive seen Laytons tank in person it's a nice tank and im sure he gets good growth, when i was there nice tips were observable.
Shawns tank is a nice tank aswell but for what is basically a one year old sps tank it is in my book amazing. Great colour but more than anything as you said Duke the pics of his tank speak for itself, and his growth is just HUGE.
I like, layton could show many pics of two part systems with huge growth but the same can be said for just Ca reactors, or infact just water changes and kalk top up.
Personally i find ca ractor and kalk top up works best IMHO