ravid: in my experience/opinion, trying to order 67% or 63% 0r anything other than 5% increments is crazy BECAUSE you won't get it made that precise...no you won't. Order many and frequently and some will be perfect and other may make you spin your head regarding the density. The most important area to order a less density in my opinion is the crown as the factory seems to go crazy there making it super thick. write back and tell us your experiences with density variations from the same factory. It's just something you have to accept.