Anyone tried a two-shoulder strap with their PRS?

[roboboticus]

My McCarty's been killing my shoulder for years, and I've already tried a wide padded strap. I'm curious if anyone here's tried the Duo Strap by Gruv Gear, or any other two-shoulder strap. I read some killer reviews of the Duo, but it's quite expensive, and mostly bad reviews of the other ones out there (unless there's one I missed).

Please let me know