I have been racing since a week after I got my drivers licence which was a LONG time ago. I have raced stock, modified, and prototype cars with all sorts of groups, SCCA, PCA, POC, NASA, PRO, HSR, FIA etc...I have built many of the cars I have raced and built cars for customers and raced others cars as well.
Now I am an airline pilot and have a variable schedule. I live in a late 1800's home in Salt Lake City with a carriage house for a garage (painful for a guy that used to have a 20,000sqft facility to build cars). So for me to go prototype racing or big car racing I would have to buy or rent a shop, hire guys to maintain the car etc...I am not willing to do that right now. So my self imposed rules were a class that I can build, maintain, and run the car with my limited time, limited facilities and with a limited budget. I have a lot of 944 time (mostly turbo), and I am not into Asian or American cars so 944Spec was a pretty easy class decision.
I am also one that was very good at manipulating the loopholes in rule books as most are in the big money racing series. Were we cheating or simply innovating and adapting? I for one felt it was part of racing at that level to find any advantage possible. Sure the driver was important but the car was huge and nobody was without some level of rules interpretation in their set-ups.
Given an open rule book and a big budget I will have a very expensive and fast car. But that is NOT what I want to do right now with family time and budget constraints. So again 944Spec makes sense to 'control' me in both respects.
Can I find loopholes in the rules in 944Spec, ummm yes, lots. Can I do things that will not be found out...yes. I choose to take the higher ground on keep it strait, but these things also cost a lot of money to do right and again that is not what I want to do. I choose to make suggestions at rules time for items that might be cheaper or easier for guys building and maintaining cars, or things that add to longevity and if they are legalized I will decide if I will do them or not.
Heck I am still building my car after 2+ years so at this point I am not really part of the group except in the future tense.