I bought a pair of the gold il moros last season and got about 60 days on them in colorado. I ski all over the mountain and charge pretty hard. I'm also 5'10" 190lbs. I ski park, bumps, couloirs, groomers, drops, trees, etc, etc. I gotta say this boot kills everything. I was in the same boat between pros and il moros. I like the slap ratchet due to its convenience and what I would consider super smooth flex. I thought the boot was relatively light. I also ski the medium (black) tongue. i have think lower legs so I liked the ratchet as someone mentioned you can micro adjust. The higher cuff makes them squeeze my lower leg quite a bit but the liner adjusted itself upon molding and you can see it.
One downside I would say to the il moro, though it hasnt presented any problems yet is the plastic buckles and you won't look as gnar cool in the lift line as the bro bros in arc teryx with the lime green pros.
My background is I've been skiing for 20 years in langes for ten of those. I'm probably an anomoly here though.
I bought a pair of the Krypton Pro's last year and they are amazing! I skied about 60 days on them and other than giving me bad shinbang (my fault for back seat landings) they were great.... The onlything i would say is that the il moro with its wierd top buckle thing seems like a good idea until you land back seat and they break which happened to a couple of my friends with their older models. I weigh 205 pounds and am like 5:10. Just what ever you get spend alot of time with your boot fiter the whole process with my boots took about 6 hours between figure out the right boot and then custom fitting them. Good luck!