Getting multiple opinions is generally good, but the first two you got weren't much good. (from your original post) A 6wt rod is designed to cast ideally with 30' of 6wt fly line outside the rod tip. A 6wt rod may cast 20' of 8wt line well, but beyond that it's performance will suffer. A snapped rod could be one form of that suffering.
Its true that a 8wt line is ideal for casting bulky bass flies, but these are far from necessary for smallmouth. I've caught more smallmouth on size 6 and smaller clousers and buggers than on anything else, and never on more than a 6wt rod.