Seems that the material doesn't make much difference in performance--string weight, how it's made, tuning, nock fit, etc. does more.

I like Dynaflight '97 on bows pulling 50+ lbs, 8125 seems to work a little better for under 50#. 10 strands of Dynaflight is fine for 60#--I think it will be a little smaller than 8 strands of 450+, and I've never heard of Dynaflight breaking without warning. I've had folks order 6 and 8 strand Dynaflight strings, but I haven't tried one.

Chad