A lot of Head-On complaints are dependent on the point-of-view of the user's front end. I think it frequently happens that from the shooter's point-of-view, it's a front quarter shot, while from the victim's front end it's much closer to nose-to-nose.
It also happens that the shooter will say it's not a Head-On because the intended victim tried to avoid the Head-On. I had a fight with Joey's P-51D (of tonyjoey) in a 38L the other day, and he tried for the Head-On shot in the initial merge. I tried to avoid the Head-On, took a ping, and went on to shoot him down. Then I asked "why did you HO on the initial merge?" He answered "I didn't HO, that was a front quarter shot." Yeah, only because I didn't try to HO too.

Although you make a valid point I can assure you neither of these 2 tried any such thing. They were both 2 turn kills and I'm convinced the LA5 has stall limiter on. If not, he was so
full throttle trying to get lead it worked overwhelmingly to my advantage.

P.S I must subscribe to one of those sites to upload films.