Ok,
now i got it.
You confused me a bit because you first talked about a newbie La7 pilot. A newbie will probably never loop. He goes into a turn fight no matter what plane. And i hope you will agree that in this situation it is unnecessary to ho.
And i agree,If the La7 is more experienced, and tries to rope a slower plane, a ho could be the only way.
And if you think a HO is a 50:50 crap-shoot, then you don't know how to HO.
Sorrily, we cant proof how much ho are sucessfull and 'skillfull'.
I know how to ho in certain situations. But its much better to know how to be sucessfull without ho. I do ho by myself from time to time. But its always a desperate last move. ( Hajo..you remember me

)
50:50, 70:30, 30:70 who cares? Its always a gamble. And nothing to be proud of. (I am not talking about you)
Ecke