I guess I'll throw my .02 cents in... but I think everyone knows my rest by now.LOL
The WB is a great rest, despite what many think of it. But like anything else you need to have the right equipment with it for it to work with little or no problem. Mine has no problem.
I shot with the 4" vanes and did see some differances in arrow flight.. rarely but enough to notice. Since going with the Blazer (due to gents on the website) I have not noticed a single arrow flying remotly inconsistent with another. If you go with the WB.. blazers are the only way to go.
It's a great rest for hunting, particularly for myself who hunts from the ground and the tree. But it's not a miracle rest.. you need to have it setup right to get good flight.. LOL.