[fadeyev]

Less.js will cache the CSS on modern browsers after the first load using HTML5 local storage, so subsequent loads aren't an issue. First load is also very fast and won't make a huge difference. Like you, I wouldn't normally recommend running the compiler live but the performance here is really impressive. Please don't assume how fast Less.js is before you try it.

[nex3]

The first load is the important thing: it's when people first see your website. I've done plenty of speed testing of less.js, and on large CSS files it's seriously slow. I'll post the exact numbers elsewhere in the thread.