Emphasizing some of what I would suggest and editing in what I would add. i.e. my lazy way of posting.
Other stuff:
Use different Hi Hat samples for each hit to make it sound like round robin, but it doesn't have to be a consistent order. For example, you don't have to go Hi Hat 1, 2, 3, 1, 2, 3, you can do Kick, 1, 2, 1, Snare, 1, 2, 3, 2, Kick+HH4, Snare, HH4, assuming 4 is an open HH, and 1, 2, and 3 are slightly different closed HH.
Make the part realistic in terms of which sample usage order would be used to imitate a real drummer.
Example