The tone? Your friend got mah, yo tell us!!! xD

Apparently, Gibson running low of their better, lighter honduran mahogany. So to reserve the better select wood for the custom shop, most of the newer gibsons are using heavier honduran mahogany thus requiring chambering to make sure the guitar doesn't snap your back.

Tonally, some say it cuts the highs more cuz of the air pockets, making it sound more vintage, credits to everdying.