I don't think people are worried about speed because of string jump. That's going to be an issue no matter how fast your bow is. Most are aware of that and know the importance of shooting a relaxed deer vrs an alert deer. Speed helps with judging yardarge. The faster the bow, the flatter the trajectory. You could be off by a few yards, or 10 if your bow is fast enough and still hit the kill zone of a deer. That's why 3-d shooters love speed so much, it ups thier scores because there is less variation between different yardages.

I know a few people with the WB, and have not seen that large of a speed drop. I don't doubt that it could happen, but I don't think it's the norm. They couldn't give these things away if that was the case. I haven't used a rest yet that changed my speed on a bow. And I have tried alot of rests. I mean they may change things a couple fps, but nothing that required me to change my pin gaps at any yardage.

Paul