Here's a bad pic of what I use.
SO far it's worked out to 248 yds. just past dusk. (glad there was snow)
I put the sling around my neck with tension and rest the Striker in the shooting sticks, very steady. When they got in close at 30 yds I shot offhand, but then again I shoot a lot of silhouettes during the summer and I can't rest my arms against my body and I have to stand too.
The 'seat' is like the stadium seats and sure helps my back and keeps me pretty steady too.
I also much prefer a rifle scope too.
I got my first yote two years ago with my Contender in 6tcu using the same setup.