I do it - if you are interested, Snow, niche yourself to your past work experience.....in my case, I cover a lot of scientific, engineering, medical and military work - and I am not a PhD scientist or doctor...just a light science degree(s) with a good English background. If you have language skills, that adds value too - I do cover a little. What I often find it is taking me into marketing and selling advice about product positioning to the targeted customer (if known) and then benefits/features structure and about how to handle/minimise product risk.