The last time, I visited the Boyd website, they had a video on refinishing where they were using True-Oil. There are litterally countless finishing products and it's human nature to keep using what has a proven record. That to me is mostly Tru-Oil. I have also used Min-wax polys. Also keep in mind that whatever you settle on, it should be rated for outdoor service. If you run into a product that you feel "might" work, try some on a practice piece. That way you not only get familiar with it's use but it's performance. .....
Be Safe !!!