No Art, don't need any ice! Cool breeze would be nice though! Tired of all this hot air!
I've built many, many strings, over the past 25 plus years, so I do understand "your Theory"!
If it works for ya, that's all that matters.
I have built strings, with 2 disimilar materials, but prefer to put even amounts of both in a bundle. Yes, the dacron probably acts as a dampener, that is the purpose. But now the manufactures have blended material with these properties.
Give one a try. That's what so great about building your own!