Bought a few sets of pearl at the Blade show yesterday. Now......if pinning to liners or tang...should hole in pearl be a bit larger than the hole in tang or scale for enlargement of pins when peining? If...say...the pearl and liner is 1/8" total thickness.. how long should the pin be before peining? What is best method for sanding and polishing? Thanks for any help before I screw the whole mess up!