most of the question was ansewered very well eg fires burning nylon, noise produced by nylon there is one other problem not meantioned this is the availability of the stuff. in my town there is nowhere to buy the latest and greatest. one store and it is a hunting shop they do stock some stuff but only in camo.

up here there is so much fire wood with all the bug kill that a good size fire is easy and the norm. that is part of the reason for me to use a pulk as the gear used to weather the sparks is usually more heavier. my set up usually requires that i bring alot more food as you can never tall when you may be snowed in for extra days. in that type of scene no one can help you only what you have with you.