Hi Bret,
If you're just wanting to mic an acoustic hi-hat (not drums), then you don't need a close mic on the hit-hat.
With a good pair of overhead mics, you'll have plenty of articulation... and you'll have the freedom to EQ specifically for the hi-hat (no drums to worry about).
For this particular purpose, I'd want a pair of small diaphragm condensers.
All would do a pretty good job.
Make sure to use a high-pass filter... as there's nothing on the low end that you'd want from the high-hat.