ski size is personal preference. i have pretty long skis (178) and i have no problem w/ people who rock 150's and 160's. Does it really matter? Stop all the hate.
You my have gotten water between the two lenses, if so, you need a new one. If not, then you should be VERY careful while trying to blot off the smudges. You really shouldn't be doing anything w/ the inside of the lens cuz it has antifog on it. Hope this helps