When holding the ace for what you think is the nut flush make sure to be wary of those suited cards and their connectivity. Nothing is worst than hitting the A high flush and sitting in front of your computer thnking I have the nuts when some is holding the suited 57 on a 468 board of the same suit. It's easy when you hit that ace high flush to think hell yeah I got the nuts. Then you cry to mama about your bad beat because you didn't see the straight flush possibility in your excitement. Trust me, it makes for a bad day.