Dave, have you tried their new HK 55 track saw? It's more like a traditional circular saw than the TS 55 or 75 but still plunges. I saw Tommy Silva and his crew use one a lot on the past few seasons of "This Old House." With the 420 guide fence it looks like a great saw for framing. You then use the longer rails for cutting plywood and sheet goods. I'm considering getting one when I build the new house and shop.