What is a pain is my offhand rifle shooting ability. I just don't have the steadiness to make 100+ yards shots with confidence.
Have you tried the hold-off, move the sights on to the target, breaking the trigger as you stop the movement method?
It works really well. Even if a person has a "hold wobble" of say 5 MOA, they can effectively shoot down to 1 to 2 MOA with that method and a little practice.