I've had a very different experience with designers. I would say that ~95% of them something is a couple pixels off, a slightly different font size, or a shade

I've had a very different experience with designers. I would say that ~95% of them something is a couple pixels off, a slightly different font size, or a shade off in color, it was a mistake. Usually a quick follow-up question will reveal the mistake and the designer is happy to make the correction. This has been my best weapon against CSS bloat.