I like the Decca sound. I have never seen measurements but when at a friend's who has a very expensive Allaerts MC in one arm and an old Decca in a simple unipivot in another arm on the same Verdier TT my wife, a professional musician, asked in all innocence why he ever used the Allaerts when he played both...Neither a MM or MC, the London Decca ...
I have a Decca and a Stanton in the 2 headshells of my EMT TT, but it is in storage.