I just did it today along with two others. We had our arms locked the entire way. Severe severe wind/hail/rain. Scary thing is that there is no way of predicting when the next gush of wind will hit you. And I'm sure you'll have your camping bag, which will make it impossible to gain control when that wind hits you.
You have to absolutely absolutely have to have a solid boots, thick raincoat, waterproof everything especial from waist below (my entire body and my foot was wet wet. And this made it very very difficult. I didn't have the proper gear - fleece... Waterproof jacket... Waterproof pant... Etc).
You think going up the steep mountain will be tough? How about going down? I thought my knees were about to give away. Very slippery (mudd, long grass, and constant water flows from pouring rain) and from all that walking, you legs are already so tired...
I wouldn't have survived without the two other pilgrims. We locked our arms... Shared our last piece of chocolate... And most importantly we worked well together.
If you are alone: DON'T EVEN THINK ABOUT IT
if you have partners without proper gears: DON'T.
if you have partners with awesome gears: PRAY AND THINK REAL HARD.
I'm not encouraging or discouraging. Just sharing what I went through and my opinion.