Can anybody tell me if this chart is very accurate for traditional bows? I did required steps and the shaft they recommend doesn't jive with what I've come to learn from folks on here plus some of my own experiences.

Any thoughts welcome.

No -  Use the Stu Miller Calculator. I found it to be accurate

http://heilakka.com/stumiller/

No there too many variables with traditional bows for it to be really accurate,usally on the stiff side.I prefer too bareshaft tune for my bows from my experience with tuning bows.This is a great site just ask some questions about arrows for your bow.