Is this Ashway Crossfire ..?
If it is the mains are Kevlar, which is an extremely durable string. The Ashway cross is a soft Syn gut. You could try one of the harder Synguts. I use 16g Prince SG with Duraflex or the equivalent from one of the other companies since I buy Ashway Kevlar in reels.
GAMMA 4000 + WISE | PRINCE SPEEDPORT GOLD