How do you estimate (or measure) torque on connector screws? Put another way: how do you teach an apprentice what the correct torque feels like? I discover I over-tightened some screws on the grounding bus bar of our panel; one #12 was crushed beyond flat. On the other hand, I'm going to be using some Al connectors that call for 35 and 50 in-lb. So it's time to get my torques right. Could buy (or perhaps rent) an automotive torque wrench, but there's probably a better way... Thanks much for all your advice! Reading this forum has been very helpful. P.S. All of these use a slotted drive. I will use emery paper and Noalox on the Aluminum.