Hi Britchap,
Welcome to the Mattress Forum! 
Just as a word of caution I would be aware that firmness/softness is very subjective and depends on many factors (such as each person’s body type, sleeping positions, and individual preferences and sensitivities). A mattress that is too firm for one person may be too soft for the next so I would always test a mattress in person (using the testing guidelines in the tutorial post) which will be a much more reliable way to assess how firm or soft a mattress feels or you regardless of how firm or soft it may feel for someone else.
Phoenix