I'm looking for recommendations on the softest hole currently available. Alot of holes don't have softness / firmness rating so it's difficult to choose one. Bonus points for: Having around 6 inches internal length. No or very little smell. Flip open to clean.

I have and enjoy both the Venus Clone Rich Soft, and the Fuwa Pocha Long (this is the softest, but has a slight smell). Both are around an 8 in softness. I've heard there are 9's though, and I'd like to try one (I know they will be less durable). Is there such a thing as a 10?