I am considering buying one of these string materials. Is Astro worth the extra 10 dollars per spool? I would be purchasing it from 3 Rivers. It says "Brownell recommends 20 strands for traditional strings" That seems like a lot. I don't want to pay almost 50 dollars for a spool of something that's going to get used that quickly? What do you guys think about these two?

Astro flight is great! My favorite material by far. I only shoot 8 strands and have had no issues at all. My bows  are in the 45-55# range.

Allright, thank you.