the fulcrum that is supplied with the machine, will it create more tension on the switch points when it is higher on the slide rails or lower. or does it even make a difference?
Lower.
Here is the NMRA’s page on recommended minimums http://www.nmra.org/standards/sandrp/rp-11.html For an HO 40’ car they recommend 14". I have gotten HO 40’ cars to go around a 12" curve, but I don’t recommend it.
Enjoy
Paul
Paul, your train appears to have arrived at the wrong city.
Mark
[:D] For a second there I thought I had scrolled down through the space-time continuum.Jamie