I dont like wrap around guards after I watched my friend break his wrist clean through when he went over the handlebars with them fitted, right in front of me. I have also been forced to remove them from my enduro bike during scrutineering for a motocross race for the same reason.
In the light of this I will put up with cold little fingers!! At least some of my hand will be a bit warmer.
I ordered some non wrap around today from the "hi-level" catalogue for the massive sum of �6. I'll let you all know what they are like when they arrive.