first time on a cable

I am going with some friends to ride a cable in a week and am looking for some advice or pointers? we are older group. (all 30+) and we only get out about once a month during the summer behind one of the groups wakesetter. my hope is that with smooth water we can work on better edging and board control. and goofy foot to better our ridding. are there any other things we need to be mindful of thats different than ridding behind a boat. is there anything else to work on besides edging and ollies?any suggestions would be great. also what happens when you fall? do you swim back?