Which one is the original 4x4x4 Mefferts?

I have 3 QJ 4x4's.

The white mini QJ is for me too loose and is not used much.

The black mini QJ is just right in tightness (like my black Eastsheen 4x4) and is used alot.

The big white QJ with tiles is a little loose for me but I like its size and so it is used a lot.

Some believe that all QJ 4x4's are Meffert KO's. But some don't. Given the policy on KO products on this site now, the people who matter think that QJ 4x4's are not KO products.
 
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