RE: Recommend a string.
C 903:
I don' t have a ton of shots so far, maybe 6-700 or so.
The serving is very tight, no movement. After about 150 shots, I had to give one cable one twist.
My bow is a 65 pounder with original Oregon Black knight cams. The valley is quite narrow, so I noticed when the cams were just a little out of sync. On a milder cam, I may not have noticed and made the change.
I did get the TUXX strings, not the standard ones. The material was the standard 8125, but you can get other materials as an option. I did think about 452, but didn' t go that way for this bow. Hope this helps.