Very occasionally, and this is not fishing for compliments, I wonder if I am even needed anymore! gus4416 processhead twilliams and I am sure a bunch of others provided awesome information here! Also, TimC 0 nailed it right above, evaporation rate from inside the stick to the surface matching the evaporation rate off of the surface is a key to this
hunters stick for at home users, if wrinkles are the goal then understuffing slightly is your best tool in my opinion