I found some old 452 and made an 18 strand string with woolie whispers. Much quieter and better shot feel. I couldn't tell you if there is any speed change.
The bow is a CH X. (No phenolic) zircote riser, tiger mytle limbs. 51lb @ 29. I draw 30 1/2".
It was fine with the string it came with, but this 452 is much better. I have enough for 2-3 more strings. That should get me through the year.
Is 452X basically the same material?
My arrows are just a little underspined but it will shoot them clean if I hold her steady. I ordered a doz 79/95 that should work out with 175 gr heads.
I'll get some photos up when I figure out how. Also I just filmed some shots with the new string, it sounds pretty quiet to me.
Tedd