Can you place just two pins on one side or opposing corners for the time being? That way the width discrepancy is less of an obstacle while stacked on the car.
---PCJ
Yes, this does work..
This is exactly what I do with my stack cars made by K-Line. Even though all containers are the same width, trying to use all the pins at once makes the connection very tight and it's difficult to get them on. Putting one pin on one side, then another pin on the opposite corner on the other side, still does the job and it's much easier. Now to fix those container doors that fly open for no reason at any speed...