Cool - I finished the floorboard nutplate modification to make them removal. It is a double edge sword because the mods are great for maintenance, etc, but they add lots of time to the project. I have heard guys say that just pop rivet the floorboards in an drill them out the few times you need to get under the floor- I don't agree so I invested the time which for me turned out to be 7.2hrs over 5 work sessions, which means my airplane notionally will fly 1 week later due to the mod. Again worth it in my opinion. 111 nutplates on top of the dozen or so that are spec'd for the fwd floorboard per the plans. That's 222 rivets.
