Hello, I had a question about my strings. I play with the Ultimate Duo hybrid strings from Wilson, with Alu Power on the mains at 49 pounds and the NXT Tour crosses at 51 pounds. When new, the strings are not all that impressive, and it stays that way for a while. That is, until the NXT Tour crosses start to notch. It is then that my strings play amazing, and that I feel like I am playing at my best. Is there any explanation for this? Is it likely just me? I would really appreciate feedback on this.