Atlas CZ passenger cars

I have one dome at home and another at the LHS,  Just about done adding TMCC to my Smith & Son E5.  than to clear off a loop of o-72.  Cars will be lettered for Burlington for a twin cities zypher

Have you tried adjusting the couplers by moving them a little further out? They should easily make the 072 curves.

I routinely run nine coupled cars. Your track work has to be free of kinks and ANY aberrations between joining sections. You MUST tape over or saw off the thumbtack. You must adjust the coupler pocket distance to accommodate for the curves. There must not be any S curve. It MUST be a smooth flowing continuous radius curve.

I have no problems by adhering to the above. All a must.

Scrappy