I have herd some bow companys offer 3 under tillering. My question is there a differance? If so how would you do it?
Check out this Question and all the good replys:
http://tradgang.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=125;t=000553
At a high level, 3 under requires less positive tiller (and in my experiences zero tiller or the bottom and top limb are equal strength).
That help me,now I have to the hard part and begin to tiller a bow.