I routinely fly the A6M5b and prefer turn-fighting. On the initial merge I avoid the HO (which I just consider good gamesmanship). However, after the initial merge the "knife fight" is on and any shot I think I can get a hit with is fair game.
What I see a lot of are players who think they are "boom and zoomers", but fail to keep the pressure on their target. Instead they zoom up, level out, circle around for over ten seconds, then dive in again. With these "jousters" I will wait till they finally decide to make another run at me. I turn into them with a little separation, kick full rudder to obtain a front quarter shot and fire. Then start the cries of being "HOed". If they turned up their aggression (a key trait of a good fighter pilot) my ability to turn into them would be reduced.
The HO was a realistic fact of WWII aerial combat, just as flying without tracers was. So those that engage in it need to have confidence in their marksmanship/aircraft. As stated before in this thread it takes two to HO. If you lose then the blame is yours.