Hi LookingNow,
One of the “challenges” of zoning schemes that have a larger number of zones with shorter people can be that the zoning may not align with their body and doesn’t work the way it is designed to work for most people (see post #18 here).
It’s great to see that Neal is going “above and beyond” to order a unizone layer for you. That kind of service is one of the advantages of dealing with a good manufacturer 
Phoenix