nothing wrong with lifting from the pinch, if it bends you can bend it back. I prefer to avoid that so I typically try to use pads, wood block, etc. Depending on the work I'm going to be doing I prefer to lift the front end of the car from the chassis where my jack stand is in this photo below and for the rear I like to lift from the center of rear beam, a couple of pumps and whole rear end is up. Once the car is up, I always leave the jack lifted somewhere underneath as a second support to the stands on the side I'll be under.