As a professional, I have air powered nail guns and finish nailers. Nailing corners of crown molding is easy by laying it upside down and holding it together with my left hand while shooting a nail with the naler held in the right hand. After the first nail, it's a breeze. No nail setting or denting the wood. Use some yellow glue in the joint also. If you plan to do a lot of these, consider purchasing a brad nailer. The gun is about $100 and you will also need a small compressor and air hose for another $100. Once you try it, you'll wonder how you ever survived without it !!!