SamSpayed: Okay, let me ask the obvious question then. What are (or were) the other attributes?
I can't remember exactly because they had odd names, the kind of names that are used for variables in programming. But they were informative enough to say to me that the values attached to them were used in calculations specific to that particular club or ball.
We all know that the clubs we use accelerate as the meter progresses towards the ding, that rate of acceleration has to be calculated and that value isn't known to us, it's not listed in the pro shop. Different clubs accelerate at different rates.
Many people have posted about how clubs and balls with the same attributes, feel different. And it's those attributes that are not known to us that make these slight differences.