The cotton-poly blend string is great, and slightly thinner than the 50/50 yellow jam string, if you play two-A, then the thinner string is better.

From Julius
"This is one of my favorite strings to play with, it just shows up well on stage. I also like this for the inside of my loop 720s. If I am playing single-A, it just comes down to witch cotton-poly blend looks better with the yoyo I'm playing with."