Thanks for looking after that string!
The Bow shop is the place that told me I wouldn't be able to use them on a crossbow, but they also told me the FFF string is the slowest string made for the Excalibur line??

The colors on the Quick spins seemed to be more brilliant, also I just read alittle article on them (not an advertisement) that said they give outstanding results. But they didn't mention what launching themfrom 0 to 350 kilometers per hour out of a crossbow would do to them.