Guppy, I know what you mean exactly. I'll be engaged with one fighter, think I'm alone so I get low and slow, and out of nowhere here comes a stupid LA7 from my 12 o'clock, and I can't manuever. So what do I do? Lately... I know its sad, but I'll just HO um. He is obviously going to shoot, he chose the angle, and I don't have enough power to make a move that ruins his shooting solution. More times than not, it is a new guy, he'll start spraying from WAY far out, and you can most likely win the HO, and pick up your previous target.
I'm not a fan of the HO, but sometimes... when in Rome....