Does anyone have any real world experience with performance gain from going from one to the other? We have noticed a lot of issues with the Black Diamond's performance. The support staff tells us we should QoS everything down to the last packet, but we don't really feel that we should have to considering the amount of money we spent on this device. Perhaps I'm asking too much, who know. Some issues we have are: Even though the CPU shows 97% idle it from one server to the next connected to the same switch its 40ms between them. "Spikes" of inexplicable/random lag that only seems to effect VoIP/Game Server type applications. We're just trying to find opinions to see if A) anyone is using these switches successfully, B) if anyone had problems with them and switched, or C) if anyone has ever heard of a switch that even though its 97% idle it still has performance issues :D Off-list is fine, and I'm not trying to bash Extreme Networks. Thanks, -Drew