It just goes to show you that everyone sees something different. You have to be careful whose word becomes "law" for you.
If you look again at the BTM Buzz review, even more perplexing than the ratings for dry are the ratings for oil, all 8s and 9s, for a medium oil pearl resin??? That raised a major "CAUTION" sign for me. I have a Buzz right now with a relatively strong drill (4x4) and it handles medium oil nicely, hooks a LOT on lighter oil (I much prefer the Hornet) and on heavier oil, I use the NS or a Big Kahuna or Yeah Baby!.
Reviews are just one source of information, no matter who performs them.
For my money, the Buzz and the WCR are both medium oil resin pearls with a skid/flip reaction. Neither handle heavy oil or light oil as well as they do medium oil. Both are very powerful on medium oil.
A control drill or lower pin position will move both balls towards the control side of the equation.
Pick your poison.
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"None are so blind as those who will not see."
Worrying is like rocking in a rocking chair: it gives you something to do, but doesn't get you anywhere!"