Exactly. If you error on having too many ice screws or pickets...what's the big deal? A couple of pounds of gear?? For this route, at this time of year, unless you've been there before or are very comfortable with "65 degree ice and a large pack" you should carry those anyway and decide what the route requires once you're on it. That what it's all about.
Close-up, high res pictures will only tell you so much. (Not to mention taking away from the real adventure and discovery that seems to be lost in climbing these days). If weight is the ultimate question here, leave behind the luxuries or loose a few pounds (from your body) and take what you'll only REALLY need up high. Good luck.