IO540, if you know the word on the ground at shoreham, then you know that this discussion has not really got close to why .
This discussion set off on a course drawn by a couple of members quoting a high climb rate for the RV.
Looking at the Shoreham published procedures for a left hand pattern on 20 and the distribution of aircraft parts as recently posted I find difficulty to combine the theory with reality.
Where was that DA40?