Just wondering about hones...

I have an Ice Bear waterstone at 10,000 grit. It is a great stone, but I've found I need something a bit coarser from time to time.

I know that most of the guys here swear by the Norton 4000/8000 combination waterstone as the basic stone for razor sharpening.

However, I've seen a King brand 1000/6000 combination stone.

Somehow, 1000/6000/10000 seem like reasonable gradations, would you guys agree?

If I buy the Norton, either the 8000 or the 10000 seem redundant.

Would you guys agree?