Guys, take a engine and set it in Denver and then take it to LA and then complain about the factory setting. Any engine must be set for the area you live in. MDS was the biggest pain there ever was, but you'll still find soneone that likes them. Nothing works 100% out of the box. Ask some of the older guys about Fox and the twin needle carb. You had to re-set them every day. both needles. when you talk about factory setting, think China. My statment was made on the number of engines sold against the number returned which is zero. Should have been in my store during MDS days. I still stand by my first statment. When MDS went down the grapper, Horizon took every one back. This is the kind of company that is behind the Evolution. You pick. Dennis