Has anyone actually measureda carbonarrows deflection before and after inserting weight tubes? I'm giving them atry and since the tubes seem to be pretty tight fitting against the inside of the shaft, I was just wondering if the deflection will change.

I was using 3/16" nylon cord inthe past butit seems like the cord was compacting and always moving forward. I'm sure the FOC was changing from this. It was also puttinginternal pressure inside the shaft which concerns me.

Thanks,