Penalties - which ones are most common?

[Eugene Fang]

Originally Posted by waialua359

Personally, I just go with what the refs are calling/not calling. However, the refs were saying how it is very very difficult to judge whether to call penalties or not in those situations.
How do you decide?

True, ruling can be very difficult. I don't know how I'd decide. I was just wondering if anyone has made a specific ruling about if landing on a ball while going over the bump is a penalty.