With all due respect to the people who are putting in the work to organize this, I have to state that I'm frankly very disappointed with the rules forbidding the use of fire or CO2, which immediately eliminates the use of hobby rocket motors or co2 power pellets.
These kind of ideas were what sparked this entire discussion to begin with, and to have them PCd out of all classes is just wrong, IMO. Sure, have the safe classes, but frankly a touch of insanity is kind of the reason many of us enjoy coming to the space on a regular basis, and there should be a #&$+! the rules class where there are no restrictions, period.
IMHO, YMMV, yadda yadda yadda.