Haa haa - I'd forgotten about that build. I've not worked on it since I came up with it... When I was testing it, however, I think I had a Signet of Capture in place of the GoLE. That would make a fair difference...maybe if you cast Glyph > Air Attunement > Blurred Vision > RtL >...
I was using that build over the double XP weekend when I was going out capping Assassin elites in Factions
If I remember I'll maybe have another play around with it and get back to you.