Don't think anyone would disagree with that but there's no doubt that folk fly circuits that are far too big even taking into account a/c performance.
You would be surprised how many people disagree. I'm often told that the circuits I have described are far too big.
In principle I also prefer 'oval' circuits for all the reasons you suggest. (Except that high wing aircraft like Cessnas are blind all the way around the longer turns) If only we could make it standard, instead of everyone doing something different.
That is not a very clear question...
Sorry Jan, but you have understood the meaning perfectly.
Here in UK we have a small but gradually increasing number of airfields with specific circuit routings.
France is looser, of course.
No surprise there then!
MJ