When investors are hunting for bigger dividend yields, they often undervalue the long-term sustainability of that yield. All too often, people think that if a cut is coming, they will: Find out in advance. Admit to themselves that it's coming. Dump the shares and reallocate before the market figures it out. I don’t see many investors succeeding at that strategy, but many try. I’ll start by highlighting some ideas I don’t like. I’m not a fan of common shares of AGNC Investment Corp. (AGNC) (at $9.46), ARMO ...