So for years I have lugged SLR and then DSLR cameras and lenses around. I have gotten some phenomenal photos over the years, mostly family. I was getting severe pain in my shoulder and had chalked it up to age. I was forced to get a smaller setup for travel just to survive. That is what grout me to mu4/3. After having this gear since last year I have much less pain and am enjoying holography again. Travel is fun again and I don't leave most of my gear in the hotel room. I can live with the sacrifices for the benefits. Just thought I would share this perspective coming from 50 years of photographing everything.