Blogged a review on my new Buzz.
http://www.vapingisyourfriend.blogspot.com
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I am very happy with mine also. there are a couple things I have noticed.
1: I have not seen a Buzz Pro that is labeled like mine in pics, most say "###" but mine says "557 Buzz Pro"
2: the tank screw doesn't really keep the tank from slipping, the tank is very well seated already, overtightening it, can actually open a gap in the o-ring
3: the Buzz Pro + M1A1 tank are awesome, and I am recomending it to all my vaping friends.