Regardless of the music style you are playing, I think it's key to practice your hihat foot hits even if you don't use it that much, but to keep your overall playing more comfortable.

For example: How many of you have problems keeping the hihat closed tight while playing 16th notes on it without tensioning your left leg too much?

Just a thought

Good thoughts.

I've also noticed side benefits, like better timekeeping, and better independence (which comes in handy for double-bass work).