I was wondering how you got 19 kadees on the Mk2s until I saw yous pics. They are far too short if you try to fit them into the NEM pockets. I nearly wrecked a Mk2 trying to remove the standard t lock coupler out of the NEM, ended up having to cut the coupler in half, just would not pull out using tweezers, ended up pulling the bogie off and I never got the NEM to go back on right, it's mounting keeps falling down on the bogie after a while. After that I decided not to try and change any more rolling stock. Can't use that Mk2 anymore, too much force need to change the couplers out and the models are far too delicate. Don't know how you guys change them. TOo me about 2 hours just to remove one and wrecked a coach in the process.