I tried to search for the info but couldn't find anything.... isn't there some sort of (minor) difference between the 317 with "Air Lite" in solid black letters versus the ones with "hollow" (not solid, just outline) lettering? The solid back lettering was on older 317's (first run?), or the type of laser engraving / etching was different (better?). Something? I thought I read something like that somewhere long ago. Thanks.
