David, Guys,
well that low action is the secret of Johns playing and tone. And as for his playing style you have to forget everything you know about classic bass playing. Remember, even when he played normally with his fingers, he always brought the strings to vertical movement, not horizontally. For this and to play fast you need that low action. If you try to rise the action this playing really gets hard and you loose much of the treble, Johns basses were playable, but not in the classic way. It is the same with mine. Also people told me that they cannot play with Tears for John due to the low action and the buzzing that happens when playing in normal fingerstyle.
As for the tone: Yes, also for me, Alembic was and is the classic Entwistle tone. The graphite basses are too neutral in sound and you can?t get that piano highs that you can get with an Alembic.
Anyone who is interested in a closer description of Johns playing style send me an email. I am happy to help you with this.
Oliver (Spyderman)