To be repeated:
Jon Hiseman. I saw him several times with
Barbara Thompsons Paraphernalia and
Colosseum. Here is a picture from 2007:
His drum solos were long and legendary. The first time I saw him performing a solo he played for about 15 minutes. At its end he played incredibly fast, and then - to the astonishment of everybody - he somehow activated a hidden switch and it sounded twice as fast. The public was roaring.
A singular highlight of his solos were the parallel rolls on bass and snare drums with moving speed (fast on snare and slow on bass -> slow on snare and fast on bass -> and back), see beginning at 4:35 in this video below. I asked him once during a break how much practice it took him to play this double roll. The short answer was: 10 years