Right now, I am using Gamma Revelation 17 as cross string to play with poly as main. Being a multi, it adds some softness (which I need for my arm) and power to the poly and keeps a very good control. I love the crisp solid feel and nice pop it gives. My problem is that it only last about 6-8hrs and I am open for a similar but more economic solution. It doesn’t have to be cheaper. For now it costs me about $1/hrs ($7.25/7hrs), so if it cost $9 and plays for 12hrs it’s good. Thank you for any suggestion.