Who knows the history or timeline of Pearl's Sensitone Snare line?

I have often stated that I feel Pearl's Sensitone line is the under rated workhorse of the snare drum world. I have had several move in and out through the years in a variety of shell material and sizes and have never had a bad one. Recently I decided I wanted to add a nice high end crack to my

Heritage Alloy Aluminum Pearl Drums -Official site

Sensitone Pearl Drums -Official site

A History of the Drum Set: Toms, Snares, and Kicks

Pearl Drums - Wikipedia

Pearl Announces Further Products Following 75th Anniversary - Drummer's Review

1930-32 Ludwig & Ludwig 6.5 x 15” Peacock Pearl Super-Sensitive Snare Drum — Not So Modern Drummer

Pearl Announces Further Products Following 75th Anniversary - Drummer's Review

Pearl Sensitone Snare Drum Shootout

Pearl Sensitone - Sweetwater

Pearl Sensitone Snare Drum Review - Snare Drum Reviews

6.5 x 14 Brass Snare Drum with 2.3mm Triple-flanged Hoops

Pearl Sensitone Heritage Brass Alloy Snare Drum - 6.5 x 14-inch - Black Nickel

Pearl Sensitone Heritage Snare Drums - Mike Dolbear