There could not be a confusion as 'mikes' is an urban name for micro-bitcoins, not for uBTC; as 'bucks' is for Dollars and not for ¢
There certainly could be confusion because 'mikes' is a vernacular expression that depends on a subset of the population for understanding, and therefore could be misunderstood by many.
I think it is essential to remove as much possibility for ambiguity as possible. Using a word like 'zibs', that currently has no other meaning, would avoid as much ambiguity as possible.