get a digital caliper if you dont already have one. i followed the direction on the manual, used my digital calipers for measurements on the linkages, and it tracked perfectly straight out of the box. i didnt have to adjust a single linkage. the blades was balance and tracked without issue.

its a nice kit to build also. i really enjoyed building mine. instructions are easy to follow. enjoy it! take a picture of it. cause its never going to look the same again.