Polo Rules

I kind of feel like an instinctive catch should be okay as in ice hockey, as long as you drop it pretty quickly.

I was thinking about this as well, but it raises issues for long passes back (we don't have an offside rule - people could use this to intercept passes - or even used to make easier receptions). But to be fair, this most be a really rare thing. Not sure it's worth worrying about. I think if you catch the ball, drop it and tap out.