JEFF-B

My plan is to clean with naphtha followed by Meguiar's X.

It's a old yamaha LD-10. All I have to go on is the yamaha Internet site since this was an online purchase reason being I'm never going to buy a perfect LD-10 and a flawed one is better than nothing. This is the same guitar I posted pic of the top separation so I suspect it has suffered heat stress or low humidity at some point. It looks to be underneath the finish and it is all over the guitar in equal proportions. I don't think it can be fixed although I am going to be more aggressive about it than I would with my Martin D41.

Is there a way to remove the cloudiness from a finish with a polyurethane coat? I suspect it has to do with improper wood treatment during construction and/or heat/humidity stress. I think not but maybe there is a way. Thx. Jeff B