>>Can you confirm which builders agree with your proposal... Does AHPC????
Yes, they agree.
And tip weight of 6.5 kg's is halve way between 5,5 kg's which was the lowest quote with carbon and 7.5 kg's which is possible with aluminium.
Both camps now loose by equal amounts = fair compromise
And you are misintepreting / misquoting my comments regarding the Stealth mast.
Also, none of the experts (inc AHPC) share your view of inequality in performance due to differences in tipweight. You may contact them yourself if you want to.
This may be a good time to count your wins and leave something for the other camp.
Wouter