Ambush hunting sling

[Arrow Slinga]

I was wondering if any of the members here have ever used one and how they worked out for you?
I thought they looked like a good idea for some of the state land that I hunt.I would like to hear some of your opinions.

[PV]

Don't know about the ambush sling but I use the "sneaky sac". It works well for trees with big branches for your feet. You can use tree steps to stand on but limbs work better for me.
Paul