He is only at the weight due to excess muscle. Some of these guys need to chill on the weights and Siver is one of them. It's like Vitor Belfort was never a heavyweight or even a light heavyweight. It is just muscle that makes it difficult to make the weight. http://lowkick.blitzcorner.com/UFC/Dennis-Siver-eyes-the-move-down-to-Featherweight-in-2012-14795
Fw isn´t as deep but I don´t think that it´s a good decision, there aren´t many fighters at his age who fought better after going down in weight
I think its a good decision. Siver is a strong striker but I think he looks kinda stiff. Dropping the weights could probably benefit him quite a bit. I dont see him matching up well with Jose Aldo (who does ?) but I think he could have a successful stint at Featherweight.