I recently purchased a 2011 LP studio in wine red/gold hdw (looks and plays beautifully). I replaced the 10-46s that came on the guitar with a hybrid set of 10-52 for standard E and sone occasional drop D tuning. I looked to have to make minor adjustments but have found that the neck is straight as an arrow and the guitar stays in tune wonderfully. I had a concern about the height of the low A and E strings as they sit about a quarter of the string higher that the top of the nut. It does not affect my playing nor the sound of the strings whatsoever but I went to my local guitar shop and was told that I should consider having the nut filled slightly for the strings to sit flush in the slots. I then looked at a nearly identical studio in the shop and a few pics online and found that the bottom two strings sat slightly high as well. Is this common with les pauls and should I have it filed regardless?