Kitchen-Samurai, I think I have the same priorities as you though think I may decide later that I want speed for quick touch ups before or after using a knife. Do you have further thoughts six months later, as you posted your amazingly detailed posts when the stones were brand new?
I'm trying to decide what to buy for a pair of first stones and am just confused between the excellent choices out there (Morihei, Naniwa, Shapton and Gesshin). I've only decided that I want splash and go.
Excellent follow-up question that i am happy to respond to. To sum it up very briefly: a) I still stand behind my initial posts, and b) I've kept the 4k, but sold the 500 and 1k.
Here are my thoughts for your case: If tactile feel and feedback are your main priorities, you
may be better off with soaking stones. A great stone/stone set as e.g. the Gesshin soakers or the Cerax/Rika line can give you this. And many soakers can be stored in water permanently, so they're ready when you are. Just keep them in a small plastic container filled with water.
If you are set on slash&go stones, though, you'll need to make another decision. Do you want stones that still give excellent feel and feedback? In that case, you should look at the Naniwa Pro stones (esp. 800 & 3k). However, they are quite expensive and also delicate (they often develop cracks), so I wouldn't consider them beginner-friendly. If you don't want a delicate stone, you can look at Shapton Glass/Pro, and maybe Nanohone. However, the general consensus is that they are not quite as good in terms of tactile feel and feedback as the best soaking stones.
Also, I generally believe that a softer stone is better to learn on, since it clearly shows you when your are off angle (gouging into the stone).
My advice: if you can live with a soaking stone, go for the Gesshin 1000 XL or the Cerax 1000. Buy only one stone, learn the skill, and take it from there. If you can't get your knives sharp, it is not the stone, it is lack of skill. Those stones will give you excellent feedback and tactile feel, they are economical (at least when you don't have to import them), will last many years, work great with most kitchen knifes (double and single bevel), and are not prone to cracking.
Enjoy the journey!