I've found the Suehiro Rika 5000x to be the perfect bridge between 1000x and 8000x stones. In fact, at the moment, my favorite go to stone line up for double bevel Japanese knives like the gyuto, santoku, or nakiri is...
Suehiro Rika 5000x
These stones, used in this combination, are giving me great edges on double bevel Japanese knives. The results are as good or better than what I get from stones costing three times as much.
I'm very pleased to have such great stones at my disposal and to bring them to market to share with you.