Use the KISS method. If I had to burn it would be 2-3 weeks before season opened or up to before the majority of hens start nesting. That will be different across the state. For me, Based off years of me being in the woods in a specific area its mid to late April. So I would not burn after mid April. No need to over analyze with data. Recon on what the turkeys are actually doing in your area. Let common sense and visual evidence be your guide.