Oh, no! Busted shoulder?? Sounds awful! I don't have a busted shoulder, but my arm strengths are greatly imbalanced due to the heaviness of my gear. LOL! I also only use L-series primes, which are HEAVY. My 85mmf1.2 weighs 2.25 lbs!! Crazy choice for a 95lb gal. ;) I look forward to seeing more through your eyes. <3