This may be a stupid question, but when you calibrated did you do all axis available to your products. I had an issue, thought it was my stick so calibrate cool all good, die, take off issues back, calibrate............. I wasn't calibrating my pedals or throttle at the same time. After sorting this, all was, has,and is fine. ( learn't about my stick that day, stripped it before I initiated the KISS method........Keep It Simple Stupid).