Had planned to do a wheel swap today, but it was raining a lot, and since I do all of my work in an uncovered parking lot, I decided not to do it today. I did however have one of my scales handy, and the Insight aluminum rear drums I was going to swap onto the CX. When I change the wheels I will weigh a factory Civic drum for comparison, but for now here is what an aluminum drums weighs, in case you've ever wondered.
Depending on what the steel ones weigh I may or may not swap the aluminum ones. I only have two spares, so I might just keep them handy in case one of the Insights need them.