I don't have a bag 1 and have been finding things in Stretch box. But now I get to the Rumba, it seems like a problem. Does bag 1 exist?
Gosh I'm stupid: Bag one is in the BigBag under the braided cable. Hope the history of my stupidity in this forum helps some future being!
I will say though that my "Pro" kit is one M3 Microbarb short of a baseplate. (The PT100 Amp PCB will probably not fly off, attached as it is by 7 microbarbs and 4 bolts!)