Thanks for the nice comments, guys! Much appreciated!
And to jazzyvee - heh, the 'Live At The Greek' version is the only one I've heard, too! Our keyboard player is the real Cobham freak, so I'll have to find out from him which album the track is originally from. Not that it matters much to the way we play it - once we've played the head a couple of times, anything can happen, and it's different every time, depending on how the room is reacting. We like to keep it spontaneous!
And I don't suppose we'll be over in the midlands anytime soon, I'm afraid. I live out here in Ireland now - but if you know of any jazz festivals over near you that might be willing to take a punt on a bunch of Irish jazz-funkers, let me know! :-)