Sharp rip change for Logosol farmers M8

Do you have problems with wave pattern when you cut the boards with your chainsaw mills? I will help you get rid of these. I use Logosol Farmers M8 Logosol Timber Jig and a Stihl MS391. But these problems arise in other than Logosol sawmill, but any chain sawmill has the same problem. his is not a insturktion but only information about how I do.