Thank you for the reply Genghis. I have widened my search. Should I find a copy of the "Write Stuff" I will forward a copy to you. I would be interested in the ETPS reporting guide - the older that document, the better in my opinion.
I may take you up on your offer of collaboration should my search not not uncover an authoritative work of merit. Test report writing is quickly becoming a lost art. Test report standards do seem to exist within organizations, but a flight test industry standard seems elusive.