I had a pair of Explorer sox that I used for about five years for work in Safety boots, rogaining and bushwalking. Thats was 12 years ago. I've bought one pair since and threw them away after one rogaine, nothing like globilisation and the race for the bottom.
Anyhow my opinion for what it is worth. Is find thin seamless 100% cotton socks, as recomended for ski boots. I used them for a number of years with no blisters caused by socks. I used to buy a five pack from Gowings for about $25.00.
My blister problems are usually caused I think by pressure and pinch points caused by orthotics. That and very poor ankle flexibility that places torsional loads on the soles of my feet.
I went for a run in a pair of fluffy lined white "sports socks last Saturday" and imediately blistered.
I've used Thorlo's once for a 32 day trek in Nepal. I do not think they are worth it.
Lately I've purchased Nike, Puma and Bonds sports socks. All basically thin, ribbless in the foot and seamless all seem to work OK.