Bachmann NEM BSI Couplings: Coupling a 150 and a 158?

A look at the Bachmann NEM BSI coupler, and using it to couple other DMUs to new-tool Class 158s with the non-removable BSI close coupler. And how to modify the coupler to work in models like the 1st generation Bachmann 150 where one NEM pocket is too close to the end of the model. 00:00 - The new-tool Bachmann 158 01:12 - The new coupling 01:50 - NEM pocket BSI couplers for other units 02:55 - Original Tooling Class 150 NEM pocket issues 03:59 - Shortening the BSI coupler 07:23 - Running test