Update: Got one SDM lens back and all looks good as new! Only issue was that they forgot to check "requires signature" on the shipping forms and UPS then simply left my 50-135mm on my door step even though we were home!

Sun Camera was updated accordingly and are making sure it doesn't happen again. Mine was shipped UPS despite the fact that Sun says they normally ship Canada Post Expedite with signature required. Not sure why.
Now just waiting for my 16-50 SDM. It was impact damage and they're waiting for a lens group which is, of course, backorderd. Have now been without it since early June.