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The 2% rule was a guideline the NMRA recomended to allow old low powered 1950's and 60's technology locos to run. It was also prototypical as most real roads used less than 2%. But we compress distance all the time, so why not grade? If I had a finished layout with an 8% grade and it worked for the trains I used there is no way I would let the gospel as posted here make me change it. Today's locos have tons more tractive power, why not use it if you want? Only thing about 8% i want to know is how did you transition it and were you using kadee couples? I have trouble with kadee's coming uncoupled on little humps in the track less than 1/16 of an inch high from a misaligned module or keeping over 40 cars coupled on less than 1/2 % grades?
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