I came across a fellow pipe smoker named Andrew, out of Hungary, who is attempting to put together a tobacco flavor wheel that will be comprised of input from pipe smokers. He has a brief online survey and last I saw, about 60 have responded. He would like to get to at least 150 and then plans to make the data available to the public at no charge. There's no cost to participate and you do not have to provide any personal information. I am not involved with this project, but would be very intrigued to see the results. If you are interested in knowing more, here is the link -
https://docs.google.com/forms/d/e/1FAIpQLScUl868YA1G_0--rYz8bh9wEdMyTgC2Fanxzlbry802_ScnCQ/viewform
https://docs.google.com/forms/d/e/1FAIpQLScUl868YA1G_0--rYz8bh9wEdMyTgC2Fanxzlbry802_ScnCQ/viewform