I picked up a new PRS SE Custom 24 today in quilted purple to go with the 25th anniversary model I already own. The guitar is beautiful but when I got it home and fitted the trem arm, it was very loose indeed to the point where I fear it could just fall out. Just in case it was the arm, I tried the trem arm from my existing CU24 but that was loose in there too. Thinking that the problem must therefore be with the hole in the bridge for the trem arm I tried the trem arm from my new guitar in the old one and surprisingly it was loose in there too. Out of the two guitars, the only combination where the trem arm is secure is the old arm in the old guitar. What is the likely cause of this and can it be easily fixed?