Could be you love the otherwordly mid-seventies Miles groove albums - Agharta, Pangaea, Dark Magus - as much as I do. Could be you didn't dare to take the plunge just yet. Whatever the case, you really should read one excellent recent article on this still rather uncharted jazzrock territory, by Angus Batey in The Quietus magazine. Like the man said: "Listen."
Miles Davis - Maiysha