I think most people use 7/64 Amsteel Blue for their whoopies. You can use Dynaglide and save a few grams but the safety factor is much lower. I find dynaglide to be much harder to splice.
I use Kevlar treestraps from Dutchware that I run with prototype Speedhook 2.0 hardware from Dutch but I’m not allowed to show it online so you’ll have to come backpacking with me or join the fall AZ Group Hang if you want to see the precious.

I have some heavy Hennessy tree straps that I’d love to send you but you probably don’t want to put them in your backpack if you are posting on BPL.