Just for clarification, the chutes I use are not from Hartle Engineering; I make them myself. I didn't even know what a Thermal Rider was until I purchased a few K&S kits last year.
He uses yellow kevlar thread for risers, and I use shiny colored button thread. I think by happenstance we use the same plastic sheet material for the chutes.
I'm really glad that everyone is so enthused about these kits. I'm getting a product line together now and hopefully by mid February the website will be up and ready.