PJRAGE,
The answer to your question is no.
The Naniwa 12K super is significantly cheaper than the Naniwa 10K Chosera. Based on Lynn's advice, the Chosera is an expensive option.
I was lucky to buy mine before the prices skyrocketed. The price has doubled in the last three months and if you live in England as I do, exchange rates have increased that price significantly more.
These synthetic hones really need to be purchased as a set to get the ultimate results from them. As a set they are an expensive option but for someone who hones for a living it is probably money well spent.
If you just want to touch up razors, a Belgian yellow coticule is probably the best option followed by a ChromiumOxide pasted strop if you need a degree more smoothness. The coticule requires a light steady hand and some practice but once mastered it is a very versatile hone. The Japanese synthetics are not versatile at all. They are just extremely good at doing what they say they will do.
I hope this answers your question.