If you're doubling close the hats tight for a umm more snare/tighter feel when you roll/double. Open, well I love open hats with doubles

cause you can hit it with the shaft also and get that hat ring then go right back to a little high pitched clean roll on em lol.
but umm. I don't remember what I meant by 16ths and 8ths with both hands :/ I think...think and assume I meant alternate the sticking on the hat with different 16ths, 8ths, triplets or sixlet beats obviously playing different stuff/adding in other stuff around the set too.
o, and for playing em. don't use your amrs...never use your arms...to an extent. It's all in the wrists and fingers when it comes to drums. If it's keeping your arm up and level so you can play the hats, maybe lower em or just relax your arm. Something else is playing openly. If you're a righty, play hats with your left hand and snare with your right. maybe more comfy for you, iono. I personally switch between crossed and open all the time while I play.
as long as you learned rythm playin guitar, should be fine. just practice, bout it.