I bought a new Snap On torque wrench 2 months ago, 5 to 75 ft lbs 3/8 drive. I was always told to keep a click style torque wrench at its lowest setting when not in use. When I pulled it the case for the first time to use it, it was set at 15 lbs, which most know that torque wrenches are accurate from 20% to 100% of scale, 15 lbs being the 20%. After use, I would always set it to 5 lbs, the lowest setting. I let a friend use it recently, he dropped it hard, so long story short I sent it to Angle Repair in West Virginia, for calibration and certification. When I got it back this week, it was set at 15 lbs. So, my question is, should I be setting all my click style torque wrenches to 20% of scale when not in use, or the lowest setting? The lady at Angle said its best to leave it at 15 lbs. What do yall leave yall torque wrenches set at when picked up?