My Monster Bass cable has seemingly been shorting out for years. I finally figured out the shorting was related to the cable and not an input jack or some other interface problem. It's been intermittent and thus difficult to isolate. I estimate the cable is 8-10 years old, maybe more. I think I bought it just after they came out with those fatter, less pliable Bass Cables, the ones with gold plated plugs and a red band around the connector housing.
I play mostly upright bass, Underwood p/u, first went straight into a Polytone MiniBrute III, then into a Fishman Model B Preamp before the Polytone, later straight into an AI Clarus III. Don't know if the shorting is the connector or the cable or really when it went bad. A good friend that's worked many, many band jobs over the years has said that the best cables can get inadvertently trampled, stepped on by a heel, rolled over by a heavy cart, etc. I was stubborn about this one because it cost so darn much. I finally dumped it for a competitive cable. The plug seems to fit so easily and all shorts are gone.
Relative to the parts of this thread that address the earlier Monster plugs damaging input jacks, certainly there must be a "size" standard. I've worked in the plating field all my life and surmise that the Monster plugs may have been overplated at one time. It's certainly measurable. The bulk of the deposit on that plug is most likely nickel. The gold is just a flash if you compare the relative deposit thicknesses of the two metals. Because gold is so expensive manufacturers control it's thickness much more closely.
Whether this thread triggers any replies or no replies is OK with me. Reading the threads has been tremendously insightful. FYI, I have not pursued the Monster customer service route or a retailer yet. I believe I bought it at GC. Will ask Monster and see what they say.