The two stones make a great pair!

The square one is really fast, and a fair bit coarser than the hybrid. It does a good job cleaning up 1k scratches before the hybrid gets used.

The cream side of the hybrid is very smooth and fine, leaves a great finish. Slurry darkens after a few laps, so it's not overly slow either.

The hybrid side works great with pure water, but a slurry has a unique feel that I will have to do more tests with!

The hybrid edges shave much keener, from either side than the rectangular stone. The regular coticule could easily be shaved off of, but I think it will function as more of a mid range workhorse for me. .