If you don't find out by then, give Hoyt customer service a call monday.
801-363-299 Have the bow with you when you call. This might help.
http://www.hoyt.com/assets/tune_charts/PowerTec_2006_New.pdf
801-363-299 Have the bow with you when you call. This might help.
http://www.hoyt.com/assets/tune_charts/PowerTec_2006_New.pdf