Lobot Borg Construct variant

[Pomse2001]

Have any of you seen this Borg Construct mould variants before ? Notice the end of the left and the right side. different mould. I have only checked it on this no coo so far and found serveral of each in my
collection. I tried to google it and could not found anything about it I have also not heard about it before I have not checked my other coo variants yet.

 

[Snaketibe]

I hadn't noticed that particular difference before. Good spot!

 

[Pomse2001]

I hadn't noticed that particular difference before. Good spot!

Thanks, let me know if you find anything about it on the internet. So far I have found nothing. I will try to check some more coo today to see if is the same with other lobot figures that have another coo.