I was just wondering if anybody has had any experience with frost seeding Native Warm Season Grasses?

I would check the QDMA forum with this question.

I do not like to frost seed unless there are special circumstances, which is typically a spot where I need to prevent erosion. Too many things can go wrong with frost seeding, or should I say, more things can go wrong than waiting until temperatures are conducive to germination and a proper seedbed is prepared. One of the biggest reasons I've never frost seeded warm season grasses is because some of that seed can get to be expensive and there’s no way that you get the germ rate that you would if you were preparing a proper seedbed or planting with a drill. Ideally, the soil should still be frozen. This method is dependent upon the freezing and thawing cycles of soil, plus late snowfall or early spring rain to provide seed-to-soil contact/coverage. One should avoid frost seeding on heavy snow. Probability of success will be lessened in years with dry springs and on sandy soils. You need to choose you seeds wisely because most warm season grasses need a soil temp of 55 F or warmer. Typically hardy seeds with early, fast germination times are the best for frost seeding. With all of that said, while "I" have never frost seeded warm season grasses, I do know some that have with success.

The biggest problem people have with this technique is competition with other unwanted grasses and weeds. If you prepared last fall for frost seeding this spring, you’re on the right track. If not, you may want to reconsider.