Actually, under the proper conditions even a production breed will continue to lay well (though not every single day as in their first year) as long as they are properly taken care of. My production girls are well past their first year but are still my top layers with 5-6 eggs each per week. Most of my heritage girls come in with 4-5 eggs per week. I have a few EE who are 6-7 eggs per week like my production girls started out.
My point was, I have never seen a red sex link, laying for 10 years. After 3 years they are usually spent. It doesn't matter how well they are taken care of. They are not bred to lay for that long.