Hi Peter, Yep! keeping in the pink - thanks for asking.
There were lots of stories explaining the George Shearing piano technique. One of the stories suggested that because of his blindness, he always played with his thumbs locked together, thereby producing 'thick' chords. I find it hard to give any credit to this theory. He frequently plays some quite dazzling 'free running' right hand work, which many a sighted player would envy. A good example of this, is the live recording of September in the rain, made in about 1959 during the so called 'Capitol Years'.
I would suggest that when you hear good 'thick' chords in his playing, that they are produced with both hands, rather than all five fingers in the right hand. Of course, he doesn't have Technichord



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Willum