I also started with a King 1k. Then I bought the Chosera 1K and haven't look back. I would dare to say its 2-3 times faster than the king, 30sec on running water then splash and go from there vs soaking the king for about 5-7min. The quality of the bevel is better IMO vs the king. What I mean with this is that after the bevel has been set with the Chosera, the edge takes to the 4k better than when coming off the 1k king, this is just my opinion from the times I did played with both for a little while and long time ago, but I could be wrong.