Bob,
Naturally it would be easier to show and tell rather than just tell without typing a very long essay. I'll try to give a brief description of my take on it...
There are many different techniques or ways to shoot a TC pistol - variations of two handed or one handed holds when shooting offhand, with a lean or off a bench that may take different stances, ways to grip and support, ways to manage the recoil/torque, the flow and followup, etc. Some obviously are more stable than others, some more comfortable than others and some more practical than others in a hunting situation. It's one of those to each his own things though and everybody needs to find which ones work best for them in each situation and then practice them.
Since we were talking in regards to shooting the heavier recoiling cartridges in our TC pistols, and your comment suggests concerning offhand shooting/hunting (ie standing on our back two legs with no other mechanical support)...
By "one handed" I mean only my shooting hand has a light controlling grip on the pistola itself to somewhat manage the recoil/torque and go with the flow at the shot. My off hand will usually be under and supporting the weight of the pistol and shooting hand like a rest for the extra stability, but not even lightly gripping anything and not taking any of the recoil/torque. At the shot the off hand is left behind while the shooting hand goes with the flow and follow up. It's just as stable as two handed holds where the off hand actually grips something (pistol grip, shooting hand, scopes, etc), but makes it easier to roll with the shot and not have either hand get bit by the trigger guard, an off hand forearm face slap or face stopping a scope or a barrel. I use such a light grip that some of my handcannons have recoiled well past 90 degrees.
What works for me shooting the handcannons offhand. Other folks may have different techniques that work better for them, but that's how I have shot mine offhand for decades.
L.