Thanks for sharing your success, John and Joni. Earliest ever for me was April 10th, if I don't cheat and travel to Tenn. or Ca.
If we ice out beginning of April , I can fish a large flat above a dam in my yak. Every year it provides some fun sleigh rides. I should look into areas 4-5 hrs. south of upstate NY/Vt for earlier chances. What are the coldest temps you find them active in? Mid-40's for me.