I am going to purchase a Laguna 18" bandsaw and they offer a 6hp upgrade, still 220,single phase. This will be my first 'big' bandsaw and I work with a lot of large exotic woods, i.e. - ipe, jatoba, and local hardwoods. When resawing large stock like a 16" plank of jatoba, I don't want to have moments where I wish I would have gotten the extra HP. Any suggestions? Is 4.5 more than enough or just go with the 6? Price is not much of an influence. Thanks!