Hey y'all: I have a 9 tub cb-70 rack system, with expanded pvc tops (few holes poked in). I've been using Cypress in the hopes of keeping a higher humidity for my Balls -- but thinking of switching to Newspaper or Aspen for ease of use/ cost.

Any thoughts or experiences on what works best/ what you use for your own Balls: Cypress, Newspaper, or Aspen?