I'm
a big proponent of the "can't grip it, can't lift it" principle when it
comes to the swing. If you can't lift it with one hand you probably
shouldn't swing it - it's like a built in safety. There is also the anti-rotational benefit of the single handed swing that really benefits core
stabilization. Lastly, the handles on kettlebells rarely fit two hands
comfortably, leading me to believe they are not designed for two
handed use. This just seems like common sense to me.
