What's the difference between the ES 2x2s?

[ADKLco]

When I went to cube4you.com to look at the Eastsheen cubes, I found that the 2x2 has 4 different types: White-B, White-W, White-f, and Black.

Whats the difference between these 4 different types?

 

[ianini]

The white and black are the normal ES 2x2's. The White-f is the A2F. It only has a 1 mm gap between the pieces and the normal ES has a 4 mm gap.

 

[Zarxrax]

The ones with the small gap don't cut corners AT ALL. The ones with the larger gap kinda do... kinda...
The one with the 4mm gap is definitely a better cube, as I have owned both of them. A LanLan 2x2 beats them both hands-down though.

 

[Edmund]

I tried the ones with the very small slit as the gap between corners at a competition. It blew compared to mine with the normal-ish gap space. I hear Lanlans are great so I'm getting one.