Due to what I mentioned above, and as you can't really control the environment. Things such as wind, light, also make it more of a challenge than the controlled environment of an indoor set. My Guitar studio/VooDoo Set has no outside lighting, so I can create 24/7 and control the levels as 'Hollywood' does with closed sound stages. It allows me consistency and full control, something real life simply does not allow... In more ways than one. Lol
" I have seen the Future.... and it is 'Seamless' "