I tried Wilson NG in the mains with Black Magic 17 in the crosses at 53/49 for the last 2 days. The string bed is much stiffer and than co-focus 18 at the same tension. Spin and power are also greatly reduced. However, I must admit that I do like the feel. Also, I am experiencing pain in the forearm from this setup. Either I need to reduce the tension or move on.