Mauser,
Wow! You can do 2 mins in that position while watching George Strombo? I was just sitting on the couch, channel surfing and stopped on his sh*te program for 2 seconds....BOOM!.....my foot immediately went numb. It took ten minutes of watching Women's beach volleyball to bring the feeling back.
THE VIEW?
If I could even hold a sandbagged prone positiion while watching those cackling hags, I'd be Service Rifle World Champ. I'd make G David Tubb look like Ricardo Tubbs. I kid you not. lol
That modified kneeling is steady. You don't need (as I first thought) to rest the bottom of the trigger guard on the knee, but rather merely need to back the rifle up so that the rear of the mag contacts (steadies) on the shin.