I tried several Florida low chill types, including Floridaprince, and none did well at my elevation, 600 ft. I think that above 2000 ft. would be more likely to do well. I think the Red Ceylon peach also does better above 1000 ft. The other big problem growing peaches here, especially at lower elevation is fruit fly. They will really nail all the fruits unless you bag them.
I've pretty much given up trying to grow peaches here. I think plums, like Methley, are more likely to do well. I might try that one again.