I am installing 4" red and white oak hardwood flooring and want to do a room in a herringbone pattern. My boards are going to be 24" long. I have seen instructional videos where they are gluing the boards down. I prefer to nail them down over 15 lb felt paper with 2" staples. Is it ok to just nail it down like the rest of the flooring or is there a reason I need to glue it? Thanks for your help.