Hm, I have several ways of handing HO's.
The most risky, but also rewarding; a barrel roll as the badnit opens up. The bandit passes, and you're free to do whatever you want. Very rewarding

. Saw showed me this trick, and I was amazed by his audacity.
A quick dive as the enemy gets within close range, followed by a very quick jink to the left or right. The loss of potential energy is neglible, and can be picked up in a zoom climb.
If I see a HO develop, and have time for it, I sometimes turn a little right or left, and put the bandit at my 10 or 2 o clock position. I avoid turning to the last second, and let the bandit do the e bleeding turns for as far as possible. As he or she approaches, I roll into and over/under, and continue to extend or zoom after the bandit has passed.
However, sometimes, avoiding the HO means giving up position or an edge.
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StSanta
JG54 "Grünherz"
"If you died a stones throw from your wingie; you did no wrong". - Hangtime