I'm really wrestling with the idea of building my top of 4/4 material. I bought quite a bit of 4/4 maple probably 8 years ago from a group buy to build a bench but before I had any idea about a Roubo. I have some 8/4 stock just not a ton (probably enough to laminate the legs). I'm just hung up on dropping some substantial $$ for ~ 150 board feet of lumber vs using what I already have. Any issues besides a ton of milling and gluing?