I mentioned the sizing way back when i did my review on my green 2's with a side by side against the 1's. They are more snug due to the new coating on the toe box outer material, this coating does not allow them to stretch as much and be super pliable. They will stretch out with multiple workouts as that material gets broken in. I did not notice a difference between the Blue Mondays and any other pair I have though, they all seem to fit the same. I have noticed it takes about 3-4 uses before the toe boxes break in. I also wear them untied during my warm up and rowing so they stretch a little they tighten them when I actually do metcons.
I would not go a size up, and stay true to size though, unless you like moderate wiggle room.
As for the laces, the blue Mondays, and triple blacks have 3m laces which add grip.