Caviler03, We're pretty careful when we burn, and everything's got to be just right. We carry a hi-pressure spray rig, brooms, rakes, back pack blowers, etc. It's not something we take lightly. But, we've had great results if the timing and weather is right, and the Bermuda's ready to sow. I normally watch adjacent areas looking for existing Bermuda grass that's greening up in the spring, and that tells me the soil is warm enough for planting.
If you can mow the rye you've already got, then that might be the safest bet for sure. Just be sure the dew is off the rye before you broadcast Bermuda seed. As Pat said, it's very small, and it can stick to the rye grass blades.
