I wouldn't be without at least one, and preferably more than one. I currently have 3. 5.5 (tiwan import 511 machine), 7.5 (invicta ti-14, Brazilian made clone of a scm t160) and 9hp (casolin f-90.) Two have sliding tables (511 & f90) and one tilts (ti-14). I've only stalled the 5.5 hp 511...