I'll let the almost-simultaneous catch/hops go. They're most likely legal...if it's so close that you need slo-mo replay to tell...I'll give the benefit of the doubt.
When I can clearly see a catch first, then hop, I'm calling it. They're travels. It's obvious.
If my partner tells me he's letting them go because most officials don't call them, I'm telling him he needs to work with better officials.