Here are some photos from the Leonardo Guitar Research Project.  Thomas Holt, whom you can see in one of the pictures, tells me that he was very impressed with some of the guitars.  Just one more testimony which tells us we can use alternative woods for guitar-making.

 https://www.facebook.com/media/set/?set=a.1402758650009712.1073741829.1402030423415868&type=3

https://www.facebook.com/media/set/?set=a.1402057133413197.1073741827.1402030423415868&type=3