I think most of the points made by LOONRAT and LOMCEVAK are fairly well known and understood amongst the UK display flying community. However, I am interested to know what the feeling of US display pilots and display pilots from other countries are towards these points. I have not attended or participated in an airshow outside the UK but judging by a number of videos I have seen on YouTube and other SM over the years, there are some spectacular and highly skilled displays flown but I do wonder how much margin of error they have because a lot of it looks like its on the absolutely limit of what the aircraft and pilot can do.