Don't know if this will help, but I had a bike fit session today for the same reason. My hands were going numb. He basically put me on a fit machine thing, tried various positions, and ended up moving my saddle back and dropping the seat post quite a bit. That's going to take some getting used to. I sure hope it helps. It did change the relationship between my upper body and the bars. Oh, and he sold me some gloves with much thicker padding than the ones I had been using.