I'll be drawing an Iowa bow tag this year. Put me in the right tree for a week and I'll let you pick from the two that I own! 😊
I did see a very nice one at a gun show several months ago but it was a a little too steep IMO. I did keep his number and he still had it the last I checked. Shoot...
It may not fit what you're looking for but I use something similar to this. It's an over the shoulder carry and the top fastener clip can be unclipped in a second to allow for knocking an arrow and shooting. There are a number of companies who make this style sling.
Limbsaver sling