I don't like screens in general, I'd rather have a clean air stream than the chest protection since that always seems to come with noisy turbulence around my head. I had a fly screen for the Monster for a bit but the gauges provided about the same protection so I ditched it.
The Monster can be a chore around town since there is some weight on your wrists. From 55-85mph the wind is a great balance and holds you up nicely. It's mostly blast to your upper chest and shoulders as the tank blocks your stomach. After 85 you start to feel it but a little tuck and it's not terrible. I wouldn't travel long dinstances over 80mph but I did several laps at the local track topping out at 110mph on the long straight. It wasn't comfy but I wasn't getting ripped off the bike either.
For reference, I think 60-65mph on the RE is comfortable, more than 60mph for long distances is annoying, and 80mph+ with a bit of forward lean is doable but not exactly comfy.
Scott