I don't think anyone does anything other than power snatches when using one dumbbell.
You should be using a barbell anyways
Only guys i've seen do anything like a full snatch with 1 arm staggered their stance on the catch, i'm sure you could with a normal foot position but the balance would be hard for sure.
Short answer go as low as you have to to catch the weight
I think there are numerous advantages to using a dumbbell.
1. Learning Curve: This is why Ross suggests dumbbell snatches rather than barbell snatches. They are much easier to learn than barbell snatches and much more forgiving of errors.
2. Shoulder Flexibilty: Even people with lousy shoulder flexibility like me can do dumbbell snatches.
3. Unilateral Component: I think there is something to said for the balance/stabilizing component that comes with lifting heavy stuff with one arm.
That's not to say dumbbell snatches are better than barbell, but they have their place, IMO.
Uh, I believe standard was saying do ONE arm snatches with a barbell. That's how they were originally done.
5. Several times more awesome
Of course you should do both sides. I don't do one armed preacher curls with only my right arm, either. Always gotta do both.
but if the one side is weaker and you are focusing on develpoing speed and power, isnt there something to be said for exploding out a few with the stronger side?
Im just throwing it out...personally i do both sides as well but when i do the weaker side, i find myself worrying too much out shoulder mobility and stability.