I take this stuff seriously as well.
Looking at page 50 of the 2007 rulebook, everything is spelled out clearly in regards to metal zippers. At no point are metal zippers mentioned in relation to a 1-piece suit.
In addition, when speeds are mentioned, it is stated as "Required over 175 mph". Not "Required when the class record is over 175 mph".
If there is more to the rules than what is in the rulebook, I would just like to be directed to the documentation. Otherwise, it is a system of arbitrary rules that is being enforced.
I think everyone has the same goals in mind here. That being, clarifying the rules, and above all, maintaining safety.