One thing I've got to do and enjoy during the building process of my 31 tudor is using files. I have one of the big adjustable body metal files, which I don't see used alot anymore, and regular hand files. With all the fitting and welding, from body panels to small brackets that I've had to do I've spent alot of time grinding and smoothing metal and welds. I use the 4-1/2 grinder with flap wheels to get the welds close then comes the best part.... The files ! Don't know why but I'm one of those somewhat uptight builders, I guess since I do alot of the same stuff all day at work coming home and doing it some more takes its toll on me... But once I have that file in my hand I become Zen.... Can't explain it but sitting there with a hand file and slowly working the metal to shape, running my hand over it and feeling it change with each stroke. Then back to the file, slowly working the edges and high spots of the welds or metal itself until I get exactly what I want. Can't explain it but I don't get that Zen feeling from any of the other build processes, not board files or bondo or sanding... Anyone else just hit that zone with a file in your hand?