on how they fit: they use the standard glove sizes pretty accurately. I measured my hand, then ordered online and the fit was perfect.
on bulkyness: they don't feel bulky to me at all. Especially not when used without the liner which you only need when it gets really cold. Gore-tex is warm!
I've got the Halfpipes and they aren't bulky at all. Unless someone knew they would never guess they have guards in them. Great gloves. I have used them 5 times and they have no signs of wear past the perfectness being gone. I never notice the guard while riding and almost never while doing anything else. The have already saved my wrist at least once. I hit hard enough that the bio-mex strap put marks in the back of my hand and felt no pain in my chronicly injured wrist. It took me two days to figure out where the marks had come from.
Found the fly for around $75 in a local store. this combo. I can't believe it since everything is usually more expensive than the US. The guard itself is a bit different, it has a strap that goes around the 4 fingers and another one for the thumb. Is this the 2011 thing? I dont like the color but i do like the price. Unfortunately they dont have the half pipes and im still thinking if i should order them from xsports protective. Maybe the mitt version.