@electric_express_200 posted:TO answer your 2nd question, it does indeed cause the car to sit up higher. I put it next to an NYC PS-1 and you can see it is a few mm higher. That is because on the new truck, the screw socket is a few mm thicker, hence the supplied longer screw.
From the looks of it, I think there is plenty of material there on the top of the bolster that a Dremel tool could fix.