Power Tapering seems to be a central option in the Griffin paper. I chose not to do it. I have a 7.5 foot line array with 60 tweeters and 34 midranges.

Quite honestly I can't hear any of the issues I'm supposed to be hearing that would require the taper. And I like the big sound stage, and the really low distortion by having each of the mid ranges only covering 3.3% of the total midrange content 165hz to 2400hz.

Marlboro