How thin does everyone roll their fondant? I used to roll it thick, maybe almost 1/4" because I forgot what my instructor/friend told me & didn't bother to look it up. Took the Gumpaste/Fondant class & that instructor did it thin & perfect & with the smoother. Tried that for awhile but then went back to thicker using the orange bands on the roller per my first instructor friend's advice after I asked, which is working out pretty good. I notice on the cake shows, theirs is really thick & still rips. I always mix some Crisco in with it or a flavored vodka. The vodka make the Wilton (ARGH!) fondant taste less bad. Still not great & I can't use the smoother well. Remember what my cake instructor/friend said "decorations hide mistakes". And also remember, if your whole cake has to be covered in decorations, eat it yourself and start over.
