I am choosing sinks for our master bath and I would love some advice on a sink that has enough of a slope so it DRAINS WELL! I have a pet peeve with sinks that look great but are too flat, and therefore are always dirty with "particles" stuck all around the bottom of the sink.

I was originally considering the Kohler Kathryn 24" Undermount sink, but have been using it in our rental home and it does exactly what I do NOT want. Too flat. Always dirty!

I am now looking at the La Cava Kubista H261UN. From the specs, it looks like it's 3" deep at the front, and then 5 3/4" near the drain. So, possibly a good choice?!

Does anyone have experience with this La Cava sink in particular?

Do you have any recommendations for a relatively modern-looking undermount sink with a good slope?

The dimensions of the Kathryn are ~21x13 and the Kubista 17x12 so something around these sizes.

Your advice is MUCH appreciated!