Yes, we did Agammemnon Wall (power lines) ... the cloud sponges are huge and prolific. However, I liked the smaller but more numerous ones at Captain's Island better. Here's a shot from Agammemnon ...
The biggest problem with Agammemnon Wall is that it's become too popular ... damage from divers with poor buoyancy control has taken a toll. Pressure from commercial fishing hasn't helped. The sponges were amazing, but I can only imagine what it must have been like before National Geographic turned it into a "must" dive for every AOW student with a camera.
We did Skookumchuck Rapids twice ... it's the only dive we did twice, because we hit it during a really good exchange. It's a beautiful dive, but it just didn't do it for me photography wise. Even during a low exchange, the current was turning us every which way but loose ... and although the wall was just carpeted with colorful anemones and ochre stars, I didn't take many pictures and didn't have any that I'd call "keepers" ...
... Bob (Grateful Diver)