Here are ***MY*** reasons I THINK 2 point mounting systems might be OK:
* on 2 point mounting systems the braces clamping down the racquet at the top and throat are around 5" wide which wrap to the sides a tiny bit.
* 6 point mounting systems DO NOT have braces clamping down the racquet at the top and throat hence the importance of side mounts for support.
* racquet heads being oval PLUS the 5" width mentioned above both act in conjunction to provide SOME support to the sides on 2 point mounting systems albeit it's much higher & lower on the racquet as opposed to directly ON the sides as per 6 point mounting systems.
* the Mains already being strung provide tension to the racquet to additionally give some support to the sides when stringing on 2 point mounting systems.
I hope all of this is correct! LOL

THANKS AGAIN!!!