Need help with Black Widow setting for Stu Millers Spine calculator

[Benjamin199]

I am getting a new to me Black Widow PSA II that was made in march of 2008., I am looking for a good arrow setup. I found Stu Millers dynamic spine calculator, I think I have most of it figured out, except I need to know what string to select, I believe I will be getting the bow with a factory DynaFlight string on it.  If someone who has experience with the bow and calculator could give me a good match it would be greatly appreciated.
Thanks,
Ben
Bow specs 60" 48# @30"

[Junglecat]

I think all Black Widows strings are 14 strand fastflight but I am not 100 percent sure.I seem to recall reading that in another thread somewhere.Hope this helps.