Thumbs up Luciano! I have to say you were the direct inspiration for me getting a set of Moody JIS drivers (from the same guy you got your set from probably lol)... just around the time I accidentally stripped a screw, wondering why I never got a perfect fit on it... but your expert tool-know-how sure came to the rescue!
Anyway, I think this is EXTREMELY important and useful information for all G-shock and modding enthusiasts especially. I think there are still many out there unwittingly using their phillips drivers without knowing about JIS :/