Yet another Hambro related question for the experts in the field. We're looking at marrying the Hambro floor system to VICF. The home will be a one story finished walkout with 2 bedrooms in the lower level. The question is how best to attenuate the sound between adjacent rooms where 5/8" drywall has the potential to act as a drum head with the 12" space between it and the bottom of the 4" concrete ceiling/main floor?