No 5k, but do have a 1,4,8 and 12k Super Stones and they all load up.

If it does not load and is a good fast cutting polisher it is probably not a Super Stone.

Interestingly these stones have been around for several 4-5 years and there is little written about them. I have wondered why, whatever the composition of the Snow-White stone, that line was never expanded. But then again, we, are a very small market in the whole sharpening stone industry.

I have understood that the Chosera, was a line of stones, made by Naniwia.