Hey, I have base retina model for more than a week and have freshly installed ML after formatting my partition. I have encountered that the scrolling-lag issue talked about over and over again on Safari is actually related to how much zoom you're on a page. For me, as long as I'm in Actual Size(Command+O) I probably have zero lag, and if I have some lag it's a non-issue for me. However, most of the times I don't like surfing the web on Actual Size, but like to Zoom In(Command + +). Now, that's when webpages start to get really laggy! I'd like to hear what are your impressions on Safari Scroll-Lag-Due-To-ZoomIn?