The daily updates are getting smaller and smaller- so if you see something you want, grab it! I looked this morning at 8 AM CST, and everything posted was already sold out. First time I've seen the Downlight Limited Edition, too.
I've not tried the Mountain Guide pants, but I did buy a pair of Igniter pants. They serve a different purpose, so you probably can't draw a direct comparison... But the Igniter pant I bought was HUGE. I wear XXL in everything else I've tried from First Ascent, and an XXL in the hiking pants I own by Mountain Hardware, etc. The XXL Regular Igniter I bought was way, way too big. My usual inseam is 31", so I get 30" or 32" depending; inseam on the Regular height is supposed to be 32". Seemed more like 36"- even when hiked up as far as possible, I had inches of fabric past the bottom of my shoes and the knee reinforcements were at the bottom of my knees. Maybe it makes sense with platform mountaineering boots, but I couldn't figure out any situation in which I'd be able to wear them without doing some serious tailoring.
Anyway, fortunately returning them was such a trivial matter, as it always is with EB. If you get a pair, I'd like to hear how the sizing works out for you- I was debating a pair of the Mountain Guide pants myself.