It might sound like an odd problem, but I'm leveling a thief for the first time, and I never know what I'm going to get after hitting F1 (queue up Forrest Gump references).
In PvP/WvW there are only 9 possibilities, so that is something you learn, but in PvE, the list is huge. Should I worry at all about this? Long term plan is to go Daredevil Staff / SB, so is F2 even something worth using later in the game? I like to keep moving + killing, so stopping to mouseover F2 to see what bundle I have is a hassle, and I find myself pressing F2 and hoping for the best.