Opinions on link local matching GUA

[Tim Densmore]

Hi Folks,

Is there a common opinion about whether or not changing link local 
addresses from EUI to an address that matches your interface GUA 
(meaning 2001::1234:1 = FE80::1234:1 or something along those lines) is 
a good or bad practice?  To me, it seems like an easy way to be able to 
remember which LL is on which interface of which device, but I imagine 
there are security implications I'm overlooking, as well.

Opinions?

Thanks,

TD