As we know, EIGRP default K values is K1=1, K2=0, K3=1, K4=0, K5=0. I found the default setting makes the metric unreadable. According the metrics is hard to know the hop count. I was considering to change the K values to K1=0, K2=0, K3=1, K4=0, K5=0. According the setting, the metric shoule be multiple of 256(256*delay/10*(hop+1)) because all of the interface is FastEthernet. Any comment about this setting? Is there any impact?