freshgasflow - a fellow by the name of Dick Karl writes aviation articles for the US "Flying" magazine. He owns and operates his own twin turboprop and is a full time surgeon in Tampa specialising in cancer if memory serves correct. Could be he could be a source of info for you? Contact the magazine at flyedit#hfmus.com (replace the # with @) in the first instance and they will put you in contact within a couple of days if my experience is anything to go by.