another 31 Limited question

[Alan Chan]

I have found the hood/front section (not the focus ring) of my 31 has a 
little bit of wobble (about 0.5-1mm), similar to the FA100/2.8. However, 
other samples that I have seen in a local shop were firm without wobble. 
Since I cannot peek inside the construction of my 31, I was wondering if 
anyone's 31 share the same characteristic. Could it be something to do with 
the precision of the helical? Or something is loosen inside? I remember Pal 
once mentioned that the front section of his first 31 fell off (but my 
memory is not good). Anyone?

regards,
Alan Chan
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