I just purchased (online) a new Gibson Les Paul Custom Classic in creme color. Upon arrival I noticed an issue around the nut area. Appears to be some checking or cracking in the finish. I called the store and they offered me a $300 refund, calling it a "blemish". The other option is to return it for full refund. Anyhow, the guitar really sounds good. Better than most of my Les Pauls. My question(s) is: should I be concerned about this flaw? Is a typical? Likely to get worse? And finally, would you buy a guitar like this, even at a discount? Thanks in advance for your opinions.