I got my seriously over-powered yellow today (what would be the Vega if it had come from LaserGlow) and wow is it brilliant! The sun was still out this afternoon when I went to fire it up for the first time, and I pointed it out the window at the side of a tree that the sun was shining on, and I could very easily see the dot!
Later on, I compared it to my 140mw 405nm, and visually both were about the same brightness. I haven't yet checked it against my WL Core, but I have a feeling it will outshine that too! Glenn's meter wasn't working, and unfortunately I'm still meter-less at this point, so I can't say what the output actually is.
If/when the next CNI GB is, if you're looking for a nice bright yellow you might want to consider one of these - you might get lucky and get an over-powered one!