I ran several marathons in Fitsock CX3 socks, along with a number of long training runs. Never once did I get a blister while wearing them. In my experience, thin, snug-fitting socks prevent hot spots better than thick socks. As for "cushioning", I'll get that from the right running shoes. I don't need a sock company adding in layers of yarn, thank you.
Gobros shipped lightning fast, and the order was accurate. Fitsock + Gobros will be my go-to on a go-forward basis!