Guys, yes the project is still underway! I have not devoted the time I should to it but it is not abandoned. More data is always appreciated. The questionnaire is located here:
http://members.aol.com/reckrose/nitroq.txt For questions 12 & 17, an explanatory picture is located at:
http://members.aol.com/reckrose/help.jpgand for any questions regarding question 16, an explanatory picture is located at:
http://members.aol.com/reckrose/length.jpgAgain, apologies for the long delay in getting this done!

Roy