Question about carpet/flooring

[derotoreut]

Revisiting this thread again. I'm looking for carpet for my 70 K10. I called Stock Interiors and told them that I'm using some Dynamat strips and heat/noise barrier from Quiet Ride Solutions. I'm using their Acousti-Shield floor kit (https://www.quietride.com/). The barrier is similar to a lot of others on the market. It is 3/8" fiber padding with an aluminum type top layer. My concern was whether or not to add the Mass Backing. They told me to NOT add the Mass Backing if using this type of heat and noise insulation. The carpet would not lay down right. Hopefully this is the right way to go. Now I just need to figure out what carpet material to go with (Nylon Loop, 80/20 Loop, Plush or Ultra-Plush). I'll probably go with either the 80/20 Loop, or the plush cut. Since this is an LS swap and not original, I'm considering the plush cut without mass backing. Any comments, please chime in. Thanks for your feedback.