We have stripped these mouthpieces of any excess weight and the result is lightning quick response and projection! Currently, there are four sizes that match up with my line of mouthpieces
#1-  DB 6 SZL
#2-6.5 SZL. 
#3- 6ZX SZL
#4- 6.5Z SZL
  We assume NO responsibility for your saxophone section crying that they can't hear themselves!!