Tips can be installed without a lathe all it takes is multiple grits of sandpaper, a good flat surface and some patience and you can get professional results. Granted a lathe is much faster but a inexperienced installer on a lathe can butcher a ferrule just the same as somebody without a lathe. I install tips without a lathe be it layered or nonlayered and I can make it look like it was installed on a lathe. As long as the end result is the same it doesn't matter what method a tip is installed. Only a phenolic tip or G-10 tip I would see would require a lathe and of course installing ferrules. But as long as whoever installs tips is careful on what method they install the tip and the end result is professionally done, it doesn't matter how they did it. Sorry for the long post.