Thanks for reply 4j, you brought the leftside shoulder down, starting from tip?

Hey folks, my name is Bill, and been lurking the forum for several weeks, anticipating the arrival of my WEPS. I have learned a lot and hope to continue. I have been freehand sharpening for a couple of years, but ready to up my game. My question is about how to approach an asymmetrical edge. I never bothered with them before, noticed but didn't give much thought. Just sharpened to manufacturers edge. I have been going over my collection, and to my surprise quite a few are off, cheap and not so cheap knives alike. Take for example the ZT 0550 in my pocket now…The right side (as if viewing from WE vise), the shoulder starts at about 1/16in. at the heel and stays almost parallel to edge - to tip, not bad. But the left side starts the same, 1/16in. at heel, then starts quickly to drift too more than double at the tip. I do not know the angles yet, but am wondering where to start. Is correcting possible without loosing to much meat off blade, or does it need to be a gradual tune-in. I don't mean for this to be a knife specific question, because I have several that are off. Looking for some overall guidelines. How do others view and solve this problem?