The Eagan Layne is definately one of my favourite dives. I've dived on Scylla and wasn't too impressed - not a lot but algae at the moment!
They are hoping that marine life will move over from the Eagan Layne, so maybe in a couple months it will be a more interesting dive.
I'll probably keep diving it though as I'm currently doing a marine biology and coastal ecology degree at Plymouth uni - the colonisation should be pretty interesting, once it really gets going!
Can't say I've ever been on the Eagan Layne and had bad vis (unlike at the breakwater! Try doing your navigation dive with ZERO vis - can't even see your hand on your mask but you KNOW you're touching it..!) though I know there can be a few currents swinging by.
My sister got caught in some pretty bad currents on the Scylla this morning as well. I couldn't dive myself, as I have a cold...
Look out for my name on the ship if you dive it, 'Amy' and a big ladybird! He he...
I can recommend a dive centre to go from if you're looking for a shuttle, it's £15 per dive and based in Plymouth. PM me for details if you want them. It's where I pretty much always dive from, and they're really good.
Plus their 10m RIB is fun!