I’ve stocked up a ton of slide film both expired and current and have been trying to learn how to meter it correctly. Using my Sekonic spot meter I’ve been spot metering the darkest area that I want to retain detail as well as the brightest and averaging. I’ve read that I want to make sure to stay within +2/-2 on both the highlights and shadows. (roughly)

Let’s say my highlights come in at +2.3EV and the shadows at -2.3EV. In this situation, I would need to both brighten up the shadows and darken the highlights, correct? Would this method be correct:? Lighten up my shadows .3EV by exposure compensation and then darken the highlights with my ND grad .3EV + the .3EV from the shadow exposure compensation? Or do I leave the shadows where they are and just bring down the highlights?