I was thinking the same, but even with polyfill, 0.6cf is just a wee bit small for the CVR10, IMO. Move up to the 0.9-1.2cf range, then yes, about 33-50% box volume of loose polyfill would do nicely.Stuff a bunch of loose polyfil in the box. That'll make the setup behave as if there is more room than there really is.
