Well phaser, gonna say this in a nice way... you are wrong. Totally and completly wrong. 50% - 60% you think. I avoid pretty much 99.9% of all HO's directed at me. It has to do with judging the situation, know what he plans to do and do something to counter it. Head ons are easy to avoid unles you are flying very slow (coming around in a loop or such), and if you are very slow and get HO:ed it's your own fault and you deserve to die.
The HO is not just a 1-pass option. Every turn the person will try it again and again and again.
The meaning of air-combat is to get on your opponents six and shoot him down where he is defenceless. If you fail this you will die or keep going back to your HO:ing (and then die, be it you may take the other guy with you). If he keeps getting a HO shot, you are doing something wrong.
A dedicated HO specialist will get you no matter what you try.
Wrong
You’re only going to avoid half the HO’s anyway.
Wrong
The answer is always the same, “it was a deflection shot” or “You where just out flown” and so on.
A HO would be defined as to when both planes have guns on eachother. A shot from 20 degree above and front is not a HO, it's a deflection shot.
A shot after a Rope where you are hanging and stalling out is not a AH, it's a rope.
A shot from the front quarter (not counting when both have guns on eachother) is not a HO.
Anything else when both don't have guns or very close to on is not a HO.
As for question:
Do you HO? NO
Do you avoid the HO? YES
Do you HO all the time? Read #1
Do you HO when no one is looking? Can be done if they are AFK but again read #1
DO you HO bombers? YES (#1 doesn't apply here)
Do you HO Fighters? NO
Do you HO vehicles? I shoot em from whatever direction may be best so I guess YES (#1 doesn't apply here either)
What else have you HO’ed? Insects when driving a car and bikecycling. Those HO:s I always win though.
If Hoing were against the rules would you still do it? NO
Have you been to any classes to be a HO? NO
Have you Hoed with anyone out side of this game? Ran into people not sure if that counts.
Have you ever been arrested for Hoing anyone? NO
Last thing... you're wrong

If you want it proven I'll gladly go to DA with you and let you head on me all the best you can. Best out of 10 flights, same plane. You won't kill me in a single HO pass.