Hello, I am trying to figure out the difference in construction between Yonex and other racquets. The Yonex RDS001 mid feels so "solid", you don't really need a dampener. I also notice Yonex doesn't really have a "trap door". 1. Do they have hollow handles like Babolat Pure Drive or Head Instinct, or is it solid material, or is it hollow but filled with foam or other substance? 2. Anyone have a picture of a Yonex RDS without the buttcap on? Thanks!