Can't decide if I should spend the $90 for the Luma Cinch (Including QR attachment), or use some of my Amazon credit to get the Crumpler Industry Disgrace for $35.
Most of the time when we go out shooting I have a Manfrotto Veloce V backpack on me. So if I did have the Luma Cinch I am not sure how often I would use it as a sling. If wearing my backpack I would only imagine having a strap around my neck or just over my arm. But would it be worth it to spend $55 dollars more for the Luma just to have the sling functionality? How is the Luma as just a neck strap? Would the Crumpler be more comfortable around the neck?
I am really only interested in these two straps. I looked into the Op/Tech and BR straps along with some others. No others really interested me. Any helps is appreciated! 



