give these a shot.
make sure all fields are clear, then
enter qes then hit tab, enter qms
hit tab a couple times and let it calculate qts
hit tab a few times to move to mms
enter mms, re, bl, le, sd, xmax, and pe
by using tab after entering each data, it will calculate what it needs to
i no longer get any conflicts
sometimes the specs calculated don't match exactly the manufacturer specs, but its only rounding type errors, so it is not material
make sure the units match. if they don't, click on them and they will cycle through the options.
its a pretty low sensitivity driver, but if that is ok, then go for it. it works in small sealed and ported enclosures.
EDIT: sorry, those are the specs for the 12".
the specs for the 15" have an error in them.