AnFI - If I am rude to you it is because you insist on trying to hijack threads with your own pet hobby horse ie singles are better than twins.
If weight is not important in cars (and I didn't say it was more important than in helos) why do car manufacturers, especially of performance cars, spend so much R and D reducing the weight of their vehicles? Oh yes...... it is to improve performance which is the whole subject of this thread!
I use Nick L's VRS figures since they are derived from testing as opposed to yours which are just your opinion and ignore any real evidence to the contrary.
Your childish bet is frankly typical of your posts - you don't like being criticised and react in playground fashion when you are.
Yes, I was wrong about the number of engines shot out in Vietnam - it still doesn't validate any of your hobby horse arguments though.