[sampk]

If a web designer needs to by anywhere close to your stylesheets, I would recommend LESS. SASS (especially SCSS) is way too verbose and complicated.

[subsection1h]

Wow, I'd hate to be stuck working with a designer who couldn't learn Sass, especially seeing as how there's a Sass for Dummies book available:

http://www.abookapart.com/products/sass-for-web-designers