In reply to The third: I think I know what you mean. I haven't done Dolphinian because when i went to do it i hadn't properly read the description and tried to climb the arete too. Does it use some sneeky holds (possibly a small pocket from memory?) for the right hand around the arete?
I never committed to it as I wasn't sure if it was right- I'd say worth claiming though as it is a different route to Dolphinian at least the middle third is probably done but not recorded as many are at Almscliff. Good stuff!