Does anyone knows the final grade of sandpaper grit used at the factory before applying the oil/wax finish? I recently sanded one of my necks with a final grade of 320 grit but I'm not sure if this is feeling like a typical EBMM finish. I know Drew eluded to using 600 and 1000 grit when cleaning a dirty neck in his video but is 1000 the final grit when a brand new neck is completed off the assembly line before applying the oil and wax?