Hey Mur...I'm new to the board as well...but not to fishing or making artificial structure. I have used the PVC and I like it. You can go to some extra trouble and get 45's to make the arms stick up so as not to get hung up as bad...but it ain't too bad with 'em sticking out straight. My favorite to build and use though are the bamboo attractants. I personally like to get the tops of the shoots, cut about 5 to 6 feet long and sacrete them into a one gallon plastic can...like a clorox bottle with the handle/top cut off. I put the can in a 5 gal. bucket to keep the bamboo from turning over the can plus that makes it kinda' uniform. These work good in any dept of water and are easy to transport and put out.
He among you who is without sin...cast the first stone.